Question

初中英语，

Answer 1

1 has visited
2 has gone , have been
3 Have , tried
4 have , seen
5 hasn't had
6 has changed
7 has , studied
8 Has , been
hasn't been
9 have told
10 have , met

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本题不明白，请再问；如果对你有所帮助，请及时采纳，谢谢！
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Answer 2

has visited
has gone;have been
have ;tried
have ;seen
hasn't had
has changed
has ;studied
has ;been
hasn't been
have told
have met

Answer 3

过去式