Вставьте Модальные глаголы could,can,be able to,must,have to 1) it was so heavy , that i...

Question

Вставьте Модальные глаголы could,can,be able to,must,have to
1) it was so heavy , that i _ not lift it.
2) he _ not climb up to the top.
3) we _ get up early if we want to catch the train.
4) he is very rude. he _ apologize.

Answer 1

1. could
2. can
3. must
4. has to