The discussion alive when an interesting topic was brought in. A. was coming B.
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The discussion ________ alive when an interesting topic was brought in.
A. was coming B. had come C. has come D. came
试题答案
D
解析:
由when…was brought in可知，come也是过去发生的事，用一般过去时。句意是：当引入一个有趣的话题时，那场讨论又变得活跃起来。