同义代换(选出与画线部分意思相近的词语，使句意完整。)

The maths problem is too hard to work out.

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按要求改写下列句子，每空一词。
【小题1】 She has gone to Hong Kong already. (改成一般疑问句)
she gone to Hong Kong     ?
【小题2】My job is to introduce each star at the show. (改为同义句)
my job       introduce each star at the show.
【小题3】 He is such a clever boy that he can work out the problem by himself. (改为同义句)
The boy is           to work out the problem by himself.
【小题4】Your homework must be finished on time. (根据划线部分提问)
be finished on time?
【小题5】He has finished the hard work by asking for parents’ help since last week. (对划线部分提问)
he finished the hard work since last month.
【小题6】Kate will invite her friends to her party this weekend. (改成被动语态)
Her friends will           to her party this weekend.
【小题7】They have built a new school in the village.（改成被动语态）
A new school            built in the village.