问题
选择题
Many teenagers don't get enough sleep because they have too much homework, which _____ them up at night.[ ]
A. stays
B. keeps
C. makes
D. remains
答案
答案：B
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Many teenagers don't get enough sleep because they have too much homework, which _____ them up at night.[ ]
A. stays
B. keeps
C. makes
D. remains
答案：B