题目内容
–How can I improve my study in the last thirty days?
--________ listening to the teacher carefully in class. This is the most efficient way!
--________ listening to the teacher carefully in class. This is the most efficient way!
A.By | B.On | C.Past | D.Across |
A
表示做某事的方式通常用介词by,故本题选A.
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