题目内容
I was reading attentively in my own room ________ suddenly he knocked at the door.
A.when |
B. while |
C.then |
D. as |
【答案】
A
【解析】略
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题目内容
I was reading attentively in my own room ________ suddenly he knocked at the door.
A.when |
B. while |
C.then |
D. as |
A
【解析】略