题目内容：

同意句转换 i went to shanghai by plane and began to like it . i __to shanghai and __ __ __ __it.
i will go to usa in the future .
i will go to usa __ ____ ____.
he asked us when we should leave .
he asked us __ ____ ___ .
i didn't pass the test
i ___ in____ the test
i found it very useful to learn english well.
i found it _____ useful to learn english well.

优质解答

1:some days later
2:when we left
3:failed passing
4:quite