.В каждом случае обведи модальный глагол или структуру которые подходят для той или иной ситуации. 1. why don"t you write a diary?It"s very useful. When you become older, you (will be able to/could)understand why.
2. Last week we (may/had to ) stay at home every evening . Father was ill.
3. Ann is speaking to her dog :(May/ Can ) you be quiet ? Sit ! Sit!
4.Ann is speaking to her mother"s friend :(May/ Can ) I join you?
5. I tried to make a cake without mum"s help and I (could/ was able to )do it .
6.You (needn"t /mustn"t)rewrite the text . I can understand everything .
7. Of course you (needn"t/can"t)do it , but if you come and say,"Can I help ?" they will be happy.