UC知道My sister didn’t finish ________ his homework until 10 last night. A. to doB. doingC. did
来源：百度知道 编辑：UC知道 时间：2024/05/25 18:20:58
选B.
因为finish后要加动名词，
动名词就是在动词后加ing，
所以选B.
B. doing
finish 后要加上 gerund (动名词). 所以其他都错.
his 是男称。应该是her吧？？
答案是B
B.finish doing sth.
his---her
B.finish doing sth.
B、 finish后要加动名词
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