They had learned six new lessons the end of last week.A. inB. atC. byD. to

发布时间：2020-08-15 01:44:06

They had learned six new lessons      the end of last week.
A. in
B. at
C. by
D. to

网友回答

A. in
B. at
(答案→)C. by
D. to
解析：in the end意思是:最后,后面不接of, at the end of意为:在…尽头; by the end of到….为止/在….之前.
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