题目内容
2．I've ordered some pizza，so we _______ worry about cooking when we get home tired．（ ）| A． | can't | B． | mustn't | C． | needn't | D． | may not |
分析 我已经点了一些披萨，所以当我们疲劳到家的时候，不必担心做饭的问题．
解答 答案：C．Can't不可能；做不到；mustn't不准，不允许，一般和规则搭配使用；needn't 不必；may not也许不；根据I've ordered some pizza，所以到家的时候，不必担心做饭的问题；Need既可以作为情态动词，也可以作为行为动词．当它作为情态动词的使用常常用于疑问句和否定句中，表示"不必"．故选C．
点评 本题考查了情态动词的用法．解答时注意区分辨别句意以及所给选项的意思．
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