用括号里所给代词的适当形式填空.

题目

用括号里所给代词的适当形式填空.
1.Whose books are these?They're____(they),I think.
2.How many students have ____(they)birthday in May?No one.
3.What's the matter with____?Do you have problems with____homework?(you)

答案

1.Whose books are these?They're_theirs_(they),I think.
2.How many students have _their___(they)birthday in May?No one.
3.What's the matter with__you__?Do you have problems with_your___homework?(you)