单项选择题

Not until ______ his shoes did he enter one of the low - ceilinged rooms of the Japanese house.

A．did he remove
B．he had removed
C．had he removed
D．he removed
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单项选择题
By the end of next year, we will ______.
A．accomplish the task
B．have accomplished the task
C．be accomplishing
D．have the task accomplished
单项选择题
Now ______ the words and phrases exactly as you hear them.
A．said
B．talk
C．speak
D．repeat
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