用所给单词或短语的适当形式填空，有一项是多余的
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1．We should ________________ smoking.
2．Good job! You ______________ in the class.
3．What ____________ to you last night?
4．There are many ____________ coming to Beijing every year.
5．The book is ________ to the children.They should read it.
1.give up 2.won first place
3．happened 4.visitors 5.helpful