**Rule:** The Simple Present Tense is used to talk about future events that are part of a program or schedule. A TV show broadcast time is a scheduled event. 'is on' is the idiomatic way to say this. Option (c) is also possible, but (a) is more common and concise for TV schedules.

**Rule:** The Present Continuous Tense ('is/are' + verb-ing) is used to talk about fixed, official arrangements for the future. A formal opening is a scheduled event. Option (d) 'will be opening' is also a correct and slightly more formal way to express this. Option (b) is for repeated schedules. Option (c) is a simple prediction.

**Rule:** This is a First Conditional structure, even though the 'if' clause is embedded. The main clause describes the likely future result of the condition. Therefore, the Simple Future ('will cause') is the correct tense to use for the result. Option (a) is simple present. Option (c) is present continuous. Option (d) belongs to the third conditional.

**Rule:** The Future Continuous Tense (will be + verb-ing) is a common way to talk about a planned event or a general state of affairs during a future period ('next year'). It describes the celebration as an ongoing event throughout that time. Option (d) is also correct for a planned event. Option (c) is future perfect.

**Rule:** The Future Perfect Passive voice (will have been + past participle) is required. The 'preparations' are the object of the action 'to make'. The action will be completed by a specific future time ('by the time the ceremony begins'). Option (a) is active. Option (c) is future continuous active. Option (d) is simple present passive.

**Rule:** The Future Perfect Tense (will have + past participle) is used to show that a future action will be completed before another future action happens. The escaping will be finished before the police arrive. Option (d) would mean they are in the process of escaping when the police arrive.

**Rule:** 'Be going to' is used to make a prediction based on clear present evidence. The 'mess' is the evidence that leads to the logical prediction about the mother's future reaction. Option (b) 'won't be' is also a possible prediction, but 'isn't going to be' connects more strongly to the visible, present evidence.

**Rule:** The Simple Future Tense ('will' + base verb) is used to state a future fact or prediction. The sentence is a simple statement about a future state of being. 'In two days' specifies the future time. Option (b) is future perfect. Options (c) and (d) are grammatically incorrect in this context.

**Rule:** The Simple Future with 'will' is used for a spontaneous decision made at the moment of speaking. The feeling of exhaustion leads to the immediate decision to take a break. Option (c) would imply a prior plan to take a break, which is less likely than a spontaneous reaction to feeling tired.

**Rule:** The 'be going to' form is used for predictions when there is present evidence for the future event. The 'dark clouds' are clear evidence that rain is imminent. Option (a) 'will rain' is used for predictions without present evidence or for spontaneous decisions. Option (c) 'rains' is Simple Present. Option (d) 'will have rained' (Future Perfect) is incorrect as it refers to a completed action in the future.