UC知道It was 2 hours'wait by the time the announcement ( )saying my flight was canceled.
来源：百度知道 编辑：UC知道 时间：2024/06/16 10:06:56
A.had been made B.was made c.made d.was making
B.was made
我觉得
首先必须是被动吧？
make announcement是只不可持续的那一时间点 所以不能用完成时
先明确这句话的意思，应该是说截止到机场宣布说我要乘坐的航班被取消，我已经等了两个小时。那么，后半句的动作是发生在前半句的前面，用过去完成时。
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