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【题目】It's necessary for usEnglish well.
A.to learn
B.learning
C.learn
D.learns

【答案】A
【解析】【解析】句意:对我们来讲,学好英语是必需的事。表达“做某事……”就是动词短语作主语,动词短语作主语时,常用it作为形式主语放在句首,而将真正的主语用带to的不定式跟在后面,即:It's+adj +for sb+to do sth(对某人来讲,做某事怎么样。)本句动词用不定式:to learn。故选A。

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