The young trees ______ before they grow up.

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问题 The young trees ______ before they grow up.

选项 A、must be taken good care of
B、may take good care of
C、should taken good care of

答案A

解析此题考查情态动词的被动语态。此句意为：小树在长大前必须被好好照顾。情态动词被动语态的结构为：情态动词后接be动词再接动词的过去分词。

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公共英语一级笔试

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