All Categories MCQs
Topic Notes: All Categories
General Description
Plato
- Biography: Ancient Greek philosopher (427–347 BCE), student of Socrates and teacher of Aristotle, founder of the Academy in Athens.
- Important Ideas:
- Theory of Forms
- Philosopher-King
- Ideal State
66191
Can we solve this problem?
Answer:
Can this problem be solved by us?
**Rule**: For interrogative sentences with modal verbs, the passive structure is **Modal verb + object + be + V3 + by + subject?** The modal verb does not change its position at the start of the sentence.
- **Correct Answer (a)**: The modal 'Can' remains at the beginning. The object 'this problem' follows. Then 'be' and the past participle 'solved' are used. The agent 'by us' is correctly placed at the end.
- **Incorrect Answer (b)**: 'Could' is a different modal and changes the meaning from ability to possibility.
- **Incorrect Answer (c)**: While grammatically correct, it omits the agent 'by us' which was present in the original sentence.
- **Incorrect Answer (d)**: This is a statement, not a question. The interrogative structure has been lost.
66192
No one has ever climbed this mountain.
Answer:
This mountain has never been climbed.
**Rule**: A sentence in the Present Perfect Tense is converted to passive voice using **Object + has/have + been + V3**. The negative 'No one' in the active voice becomes 'never' in the passive voice.
- **Correct Answer (a)**: The object 'this mountain' becomes the subject. The verb 'has never been climbed' correctly reflects the negative meaning and the Present Perfect Tense in passive form. The agent 'by no one' is omitted.
- **Incorrect Answer (b)**: This incorrectly changes the tense to Simple Past and uses a double negative ('never' and 'no one'), which is grammatically incorrect.
- **Incorrect Answer (c)**: This incorrectly changes the tense to Simple Present.
- **Incorrect Answer (d)**: This incorrectly changes the tense to Past Perfect.
66193
Do they sell construction material?
Answer:
Is construction material sold by them?
**Rule**: To convert an interrogative sentence in the Simple Present Tense (starting with 'Do/Does') to passive voice, the structure is **Is/Am/Are + object + V3 + by + subject?**
- **Correct Answer (a)**: The object 'construction material' is singular, so the sentence starts with 'Is'. This is followed by the object and the past participle 'sold'.
- **Incorrect Answer (b)**: This incorrectly changes the tense to Simple Past.
- **Incorrect Answer (c)**: This structure is grammatically incorrect. 'Does' is not used with 'be' in this way.
- **Incorrect Answer (d)**: This incorrectly changes the tense to Present Perfect.
66194
The editor was editing the article.
Answer:
The article was being edited by the editor.
**Rule**: To convert a Past Continuous Tense sentence to passive voice, the structure is **Object + was/were + being + V3 + by + Subject**.
- **Correct Answer (c)**: The object 'the article' becomes the subject. Since it's singular, 'was' is used, followed by 'being' and the past participle 'edited'.
- **Incorrect Answer (a)**: This incorrectly changes the tense to Simple Past.
- **Incorrect Answer (b)**: This incorrectly changes the tense to Present Continuous.
- **Incorrect Answer (d)**: This incorrectly changes the tense to Present Perfect.
66195
He is writing a novel.
Answer:
A novel is being written by him.
**Rule**: To convert a Present Continuous Tense sentence to passive voice, the structure is **Object + is/am/are + being + V3 + by + Subject**.
- **Correct Answer (d)**: The object 'a novel' becomes the subject. As it is singular, 'is' is used, followed by 'being' and the past participle 'written'.
- **Incorrect Answer (a)**: This incorrectly changes the tense to Simple Present.
- **Incorrect Answer (b)**: This incorrectly changes the tense to Present Perfect.
- **Incorrect Answer (c)**: This incorrectly changes the tense to Past Continuous.
66196
They will have completed the project by next year.
Answer:
The project will have been completed by next year.
**Rule**: To convert a Future Perfect Tense sentence to passive voice, the structure is **Object + will/shall + have been + V3 + by + Subject**.
- **Correct Answer (c)**: The object 'the project' becomes the subject. The verb form 'will have been completed' is the correct passive construction for the Future Perfect Tense. The agent 'by them' can be omitted.
- **Incorrect Answer (a)**: This incorrectly changes the tense to Future Simple.
- **Incorrect Answer (b)**: 'would' is an incorrect modal change.
- **Incorrect Answer (d)**: This incorrectly changes the tense to Simple Present.
66197
The manager will give you a ticket.
Answer:
A ticket will be given to you by the manager.
**Rule**: To convert a Future Simple Tense sentence to passive voice, the structure is **Object + will/shall + be + V3 + by + Subject**. When there are two objects, either can become the subject.
- **Correct Answer (a)**: The direct object 'a ticket' becomes the subject. The verb form 'will be given' is correct. The indirect object 'you' is preceded by the preposition 'to'.
- **Incorrect Answer (b)**: 'would' is used instead of 'will', which is an incorrect change of modal.
- **Incorrect Answer (c)**: This incorrectly changes the tense to Simple Present.
- **Incorrect Answer (d)**: The preposition 'from' is incorrect; 'by' should be used to indicate the agent.
66198
Who broke this beautiful vase?
Answer:
By whom was this beautiful vase broken?
**Rule**: Interrogative sentences in the Simple Past Tense starting with 'Who' are converted to passive voice using **By whom + was/were + object + V3?**
- **Correct Answer (b)**: 'Who' becomes 'By whom'. The object 'this beautiful vase' is singular, so 'was' is used. The past participle of 'break' is 'broken'.
- **Incorrect Answer (a)**: This incorrectly changes the tense to Present Perfect.
- **Incorrect Answer (c)**: This incorrectly changes the tense to Simple Present.
- **Incorrect Answer (d)**: The word order is incorrect for a question, and 'who' should be 'whom' after a preposition.
66199
You cannot trust him with this secret.
Answer:
He cannot be trusted with this secret.
**Rule**: For a sentence with a modal verb (like can, must, should), the passive structure is **Object + modal verb + be + V3**. The agent 'by you' can be omitted.
- **Correct Answer (a)**: The object 'him' becomes the subject 'He'. The modal 'cannot' is followed by 'be' and the past participle 'trusted'. The agent 'by you' is correctly and naturally omitted.
- **Incorrect Answer (b)**: While grammatically plausible, making 'this secret' the subject creates a slightly awkward sentence. The focus of trust is on 'him'.
- **Incorrect Answer (c)**: 'must not' is a different modal and changes the meaning from inability/lack of permission to strong prohibition.
- **Incorrect Answer (d)**: 'could not' changes the modal to its past or conditional form.
66200
We expect good news.
Answer:
Good news is expected by us.
**Rule**: For a sentence in the Simple Present Tense, the passive voice structure is **Object + is/am/are + V3 + by + Subject**.
- **Correct Answer (a)**: The object 'good news' becomes the subject. 'News' is an uncountable noun and takes a singular verb, so 'is' is used. The past participle of 'expect' is 'expected'.
- **Incorrect Answer (b)**: This incorrectly changes the tense to Simple Past.
- **Incorrect Answer (c)**: The 'Let' structure is used for imperative sentences, not for declarative statements like this one.
- **Incorrect Answer (d)**: This incorrectly changes the tense to Present Perfect.