Question

1. Perhaps some light exercise could / must relieve the pain. 2. He fell asleep at his desk! He might / must have been exhausted.3. Ann isn’t here. She must / can’t have forgotten.4. You don’t have to / shouldn’t exercise when you don’t feel well.5. She’s walking to school. She might / can’t have missed the bus.6. He can’t / could have gone home. He’s left his bag on the chair.7. We mustn’t / don’t have to learn Chinese.8. Tania’s in Spain. You must / could have seen someone else.​

Answer 1

Ответ:

1.must

2.might

3.can't

4.have to

Answer 2

1. Perhaps some light exercise could relieve the pain. - In this sentence, "could" suggests that light exercise is a possible option to relieve the pain, but it's not certain. It's a recommendation, but not an obligation.

2. He fell asleep at his desk! He must have been exhausted. - "Must" in this context indicates a high degree of certainty that he was exhausted. The speaker is making an inference based on the fact that he fell asleep at his desk.

3. Ann isn’t here. She must have forgotten. - "Must" here implies a strong likelihood that Ann forgot. It's an assumption based on the current situation (Ann not being present).

4. You don’t have to exercise when you don’t feel well. - "Don't have to" means it's not necessary to exercise when you're unwell. It's a piece of advice, not a requirement.

5. She’s walking to school. She might have missed the bus. - "Might" suggests the possibility that she missed the bus. It's not certain, but there is a chance that it happened.

6. He can't have gone home. He's left his bag on the chair. - "Can't have" is used to express doubt or disbelief. In this context, the speaker is skeptical that he went home because his bag is still on the chair.

7. We mustn't learn Chinese. - "Mustn't" is used to indicate that it's important not to learn Chinese. It implies a strong recommendation against doing so.

8. Tania’s in Spain. You could have seen someone else. - "Could" here suggests that it's a possibility that you saw someone else, but it's not certain. The speaker is acknowledging the possibility of an alternative explanation.