2. 外语
  3. We were all there when the accident occurred.

We were all there when the accident occurred.

admin2009-05-21  26
问题 We were all there when the accident occurred.
选项 A、happened
B、broke
C、spread
D、appeared
答案A
解析 occur是发生的意思，在四个选项中只有happen和它同义，又如：I don’t remember what actually happened/occurred．我记不起到底发生了什么事。
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