1.

1) can't

2)may

3) should

4)must

5)mustn't

6)have

2.

1) couldn't

2)can

3)can

4)can

5) could

думаю это так.

Ответ:

1. should

2. can`t

3. must

4. musn`t

5. may

6. have to

2. couldn`t . can

can

can

can

Объяснение: