The teacher asked us to learn all these verb forms __ heart.

A. in    B. at    C. by    D. to

C


解析:

learn sth, by heart意思是: 背誦,熟記.

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科目：高中英語 來源： 題型：

.The teache rfound ____ difficult to decide____ he would take with him to attend the

conference.

  A.it;whom        B.himself;who       C.this;whom      D.that;who

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