题目内容
5.It's not properto push (push) in while others are all waiting for their turn.分析 当别人都在排队的时候插队是不合适的.
解答 答案:to push.根据句意和句子的结构,it在这里做形式主语,那么能联想到让to do sth作为真正主语,构成it is adj to do sth表示做某事是怎么样的,故答案是to push.
点评 看所填单词在句中所充当的成分,看所填单词前面的修饰语,看固定句式或惯用搭配,看句子其他提示词.
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