**Rule:** The Future Perfect Tense (will have + past participle) is used to express an action that will be completed before another event in the future. The speaker predicts that the action of starting the film will be finished before they arrive. Option (a) is a simple prediction. Option (b) implies the film will be in the process of starting when they arrive. Option (c) is for scheduled times, but here the focus is on completion before arrival.

**Rule:** The Future Perfect Tense (will have + past participle) is used to warn that an action will be completed before another future event happens. The warning is that the movie's start will be a completed event before their arrival if they are late. Option (c) would mean it's in the process of starting, which is less of a warning about missing the beginning.

**Rule:** 'Be going to' is used for predictions based on present evidence. The fact that the car is 'old' and needs service is the evidence that it is likely to break down. This is a logical conclusion from the current state of the car. Option (c) is future perfect. Options (a) and (d) are incorrect.

**Rule:** The Future Perfect Continuous Tense (will have been + verb-ing) is used to emphasize the duration ('for three years') of an action up to a specific future point ('on her next work anniversary'). It highlights the milestone of continuous employment.

**Rule:** The Future Continuous Tense (will be + verb-ing) is used to describe a state or action that will be in progress at a specific future time. At 'this time next week', the process of waiting for the results will be ongoing. Option (b) is future perfect. Options (c) and (d) are incorrect.

**Rule:** The Future Continuous Tense (will be + verb-ing) is used to describe an action that will be in progress over a period of time in the near future. It explains why she is unavailable now. The preparation is an ongoing process. Option (d) means the preparation is finished. Options (b) and (c) are incorrect.

**Rule:** The 'be going to' structure is used for predictions based on present evidence or feelings. 'I feel terrible' is the present evidence that leads to the prediction of becoming sick. Option (a) 'will be' is also possible, but 'am going to be' is more idiomatic when the evidence is a current physical sensation. Options (b) and (d) are incorrect.

**Rule:** The Future Perfect Tense (will have + past participle) is used to talk about an action that will be completed by a specific time in the future. 'In five years' sets the deadline by which the action of paying off the mortgage will be finished. Option (a) suggests the action will still be in progress, not completed.

**Rule:** This sentence requires the Future Perfect Passive voice (will have been + past participle). The subject ('bridge') is the receiver of the action. The action will be completed ('built') by a specific future time ('By this time next year'). Option (a) is active. Option (b) is future continuous active. Option (c) is simple present passive.

**Rule:** The Future Perfect Continuous Tense (will have been + verb-ing) is used to emphasize the duration of an action up to a specific point in the future. 'For a whole year' specifies the duration, and 'next week' is the future point when this duration will be completed. Option (a) would mean that next week we will be in the process of living here, but it doesn't emphasize the completed duration.