问题
选择题
Not until _____ his shoes did he enter one of the rooms of the Japanese house.
A．he removes
B．did he remove
C．he had removed
D．had he removed
答案
答案：C
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Not until _____ his shoes did he enter one of the rooms of the Japanese house.
A．he removes
B．did he remove
C．he had removed
D．had he removed
答案：C