Question

【英语】被动语态题.求解释分析

1.The bowls _haven't been cleaned_ by Bill yet.

2.A historical story _________ by Mrs Keeler yesterday afternoon.
A.is told us
B.was told us
C.is told to us
D.was told to us

其实也就是求为什么要填（选）这个答案的理由w

Answer 1

第一题
碗是被洗，所以被动语态没问题，用完成时，是因为后面有yet这个完成时的标志，表示″还没有″。

第二题
选D, 主动语态应该是∶Mrs Keeler told a historical story to us yesterday afternoon.
所以过去式，有to

Answer 2

用的省略句回答，完整的回答是Some pictures drawn by the Africans are on the show. drawn by the Africans 是用来修饰some pictures的如果加上were的话