---Do you often spend half an houryour homework every day?---Yes, I do.A. forB. inC. atD.

发布时间：2020-08-21 20:39:13

---Do you often spend half an hour    your homework every day?---Yes, I do.
A. for
B. in
C. at
D. On

网友回答

A. for
B. in
C. at
(答案→)D. On
解析：在英文中和spend搭配表示在做某事上花费多长时间用doing的形式，或介词on，故本题选D。
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