问题
选择题
It took _____ half an hour _____ his homework.[ ]
A. her, do
B. him, do
C. him, to do
D. him, doing
答案
答案：C
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It took _____ half an hour _____ his homework.[ ]
A. her, do
B. him, do
C. him, to do
D. him, doing
答案：C