The crowds were excited when the soldiers finally arrived because they ________

游客2024-08-19 21

问题 The crowds were excited when the soldiers finally arrived because they ________ for three hours.

选项 A、had to wait
B、had been waiting
C、were to wait
D、have waited

答案 B

解析从句意可知，群众一直在等待士兵们，直到他们到来，应用过去完成进行时，故选B。

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