问题
选择题
Not until the teacher came in ______ what I had said.[ ]
A. they did believe
B. they believed
C. didn't they believe
D. did they believe
答案
答案：D
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Not until the teacher came in ______ what I had said.[ ]
A. they did believe
B. they believed
C. didn't they believe
D. did they believe
答案：D