题目内容
【题目】The boy go to bed his mother came back.
A.doesn't, when
B.doesn't, until
C.didn't, when
D.didn't, until
【答案】D
【解析】句意：那个男孩直到他妈妈回来了才上床睡觉。not……until直到……才，前后时态要一致，根据came可知用一般过去时，故选D。
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题目内容
【题目】The boy go to bed his mother came back.
A.doesn't, when
B.doesn't, until
C.didn't, when
D.didn't, until
【答案】D
【解析】句意：那个男孩直到他妈妈回来了才上床睡觉。not……until直到……才，前后时态要一致，根据came可知用一般过去时，故选D。