问题
选择题
Not until the child fell asleep_______leave the room.
A．did the mother
B．does the mother
C．was the mother
D．is the mother
答案
答案：A
Not until置于句首，主句部分用部分倒装
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Not until the child fell asleep_______leave the room.
A．did the mother
B．does the mother
C．was the mother
D．is the mother
答案：A
Not until置于句首，主句部分用部分倒装