**Rule:** This sentence requires a future passive form because the 'building' cannot perform the action of pulling. 'Is going to be + past participle' is the passive form of the 'be going to' future, used for intentions or plans. The demolition is a planned event. Option (b) is active voice. Option (c) is simple present active voice. Option (d) is present perfect passive and refers to a past action.

**Rule:** The Simple Future with 'will' is used to state a future fact or an event that is certain to happen at a scheduled time. The law becoming effective is a formal, certain future event. Option (c) is also possible for schedules, but 'will become' is a very common and formal way to state this.

**Rule:** The Present Continuous Tense ('is/are' + verb-ing) is used for fixed future arrangements. A scheduled speech at a conference is a definite plan. Option (b) would be for a habitual action. Option (c) means the speech will be finished before next week. Option (d) is past tense.

**Rule:** The Simple Future with 'will' is used for a spontaneous decision made at the moment of speaking. The speaker realizes they are out of milk and decides to get some at that moment. Option (a) would imply they had a prior plan to go to the store, which isn't the case. Options (b) and (d) are incorrect.

**Rule:** The 'be going to' form is used for predictions based on clear present evidence. The current time (8:30) and the movie start time (9:00) provide the evidence that they are likely to be late. Option (a) 'will be' is also a prediction but 'going to' is stronger when there is immediate evidence. Options (b) and (d) are incorrect.

**Rule:** The Future Continuous Tense (will be + verb-ing) can be used to talk about a planned event in the future. It describes an activity that will be happening over a period of time at the book fair. It's a slightly more formal and descriptive alternative to 'is signing'. Option (c) is future perfect. Options (b) and (d) are incorrect.

**Rule:** The Simple Present Tense is used for events on a fixed schedule or program. An orientation is a scheduled event, making 'starts' the most appropriate and formal choice. Option (a) is also possible for arrangements, but simple present is standard for official schedules.

**Rule:** The Simple Future with 'will' is the standard choice for making general, long-term predictions, especially after verbs like 'predict'. Option (d) is also for predictions but is often based on more present evidence, whereas this is a general forecast. Options (a) and (c) are incorrect.

**Rule:** The Simple Future with 'will' is often used to state official arrangements or future facts. The implementation of a law is a formal, planned future event. Option (a) 'is coming' is also possible for planned events. Option (b) is present perfect. Option (d) is past tense.

**Rule:** 'Will you...?' is a common and direct way to make a request for future help or action. It asks about the other person's willingness to do something. Options (a) and (c) are incorrect tenses. Option (d) is grammatically incorrect for a simple future request.