We must study hard, because we shouldn’t our parents .A. make; downB. let; upC. help; ha

发布时间：2020-08-22 03:06:20

We must study hard, because we shouldn’t      our parents      .
A. make; down
B. let; up
C. help; happy
D. let; down

网友回答

A. make; down
B. let; up
C. help; happy
(答案→)D. let; down
解析：本题考查的动词固定词组搭配let···down表示让某人失望的意思，故选答案为D
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