问题
选择题
Please _____ your homework ______ before you hand it in. [ ]
A. look; for
B. look; after
C. look; out
D. look; through
答案
答案：D
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Please _____ your homework ______ before you hand it in. [ ]
A. look; for
B. look; after
C. look; out
D. look; through
答案：D