1.After the high-ranking officials_____,the curtain rose and the play began.

问题描述:

1.After the high-ranking officials_____,the curtain rose and the play began.
A.was seated B.had seated C.were seated D.were sat
2.The old man was run down by a car.He was taken to hospital and_____on by the chief surgeon right now,
A.operated B.having been operated C.is operated D.is being operated
请说明选择的原因 说的好我会加分的


C.主语是复数.“高级军官们就座后,幕布升起,开始表演.”

D.根据right now判定为现在进行时.“那个老头被车撞了.他被送到了医院,现在主任医师正在给他动手术.”