Вопрос по английскому языку:

Вставьте необходимые модальные глаголы

(must, should, would, ought to, have to, need’t, can, could, may,
shall).

1)I … not go to the theatre with them last night, I revised the grammar rules
and words for the test.
2) You…miss your classes.
3) … you play the piano before?
4) He …learn the new words regularly.