用适当形式填空：All the students __________(ask) to bring a kite with them last Sunday.
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用适当形式填空：Are many ways _______(try) to stop people from cutting down so many trees?
用适当形式填空：Was the work __________（结束）by him yesterday？
用适当形式填空：This coat _________(wash) well.
用适当形式填空：Children should ________ good care of．
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