问题
选择题
You must finish ______ your homework before ______ to bed. [ ]
A. to do, to go
B. to do; going
C. doing; to go
D. doing; going
答案
答案：D
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You must finish ______ your homework before ______ to bed. [ ]
A. to do, to go
B. to do; going
C. doing; to go
D. doing; going
答案：D