1. You don't look well. You…………….see a doctor. (Advice)
are to could need to should
2. …………………. lending me your CD player for a couple of days? (Request)
Can you Could you Would you Would you mind
3. Whose book is this? – I am not sure. It …………………be Ann's. (Possibility)
might must should would
4. She………………stay home because her little son is sick. (Necessity)
could stay can stay must stay should stay
5. You……………. leave work at 3:30 today. (Permission)
can could might will
6. Though he was ill and weak, he ……………….get out of the burning building. (Ability)
could might should was able to
7. The windows look clean. You…………………….wash them. (Absence of necessity)
can't don't have to mustn't are not to
8. You………………..disturb him during his work! (Prohibition)
could not don't have to must not should not
9. Whose car is this? – It………………be Anton's. I think I saw him driving a red car like this one. (Strong probability)
might could must would
10. I don't believe it. It………………………. be true. (Impossibility)
can't mustn't shouldn't wouldn't