Ответы и объяснения

Лучший Ответ!
2014-04-08T18:13:46+04:00
21) 1-could you play
2-can't leave
3-?
4-?
5-could have
6-couldn't understand

22) 1-should
2-must
3-don't have to
4-mustn't
5-have to

23) 1-already
2-'ll get
3-?
4-a little
5-to speak
6-for
7-?
8-'d