Вставьте can, could или be able to в нужной форме.
1) Last year they (can, go) swimming this year they can’t.
2) Maybe the Browns (can, build) a new house next year.
3) If she tries hard, she (can, pass) her exams.
4) When he was six, he (can, swim, not).
5) Tom (can, play) the piano after 3 months.
6) Jane has passed her driving test, now she (can, drive) a car.
7) We (can, not, speak) to her on the phone for two weeks last month.
8) He (can, not, do) his homework when his desk is in such a mess.
9) My friends were so busy, that they (can, not, write) me a text message.
10) (can, hear) you me?