Номер 1:
1)Yes. I . (not do) it last night. I've decided i am going to give a presentation about wind power.
2) I.(can). I always have a basketball match on Wednesdays.
3) My sister often. (chat) online with her friends.
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1.didn't do

2.can

3.chats

просто нужно написать то же самое, заменив could на able.

1) he will be able to go to university next year.

2) i was able to play football when i was fifteen.

1) granny   has lost   her glasses. 2) i’m very tired, because i have been running   for 2 hours. 3) look! i have drawn   the beautiful picture. 4) му clothes are dirty. i have repared  my car 5) she has been translating this text sinse morning 6) i have been to india