When he came back he found his house was crowded with friends ...下列选择哪一项?When he came back he found his house was crowded with friends eager to congratulate him on his ( )A been chosen for the expedition B having been chosen for the exp

When he came back he found his house was crowded with friends ...下列选择哪一项?When he came back he found his house was crowded with friends eager to congratulate him on his ( )A been chosen for the expedition B having been chosen for the exp
When he came back he found his house was crowded with friends ...下列选择哪一项?
When he came back he found his house was crowded with friends eager to congratulate him on his ( )
A been chosen for the expedition
B having been chosen for the expedition
C being had chosen for the expedition
为什么选B不选A或C,这句话不是被动语态吗?

When he came back he found his house was crowded with friends ...下列选择哪一项?When he came back he found his house was crowded with friends eager to congratulate him on his ( )A been chosen for the expedition B having been chosen for the exp
这位网友说得很对,是被动,只是还有一点需要考虑进来：括号前面是一个物主代词his ,物主代词后面一定是一个名词性的词（组）,即使是动词也要变成动名词（ing形式）；也就是说,A首先就被排除了；从B和C中选 一个,因为时态是“被选中了”,是完成,所以C也被淘汰了,最终选B.

这句考的是congratulate somebody on something的结构
his 后面必须接名词型结构 直接排除A
somebody's doing结构为名词性，B,C都可考虑
但是从没有being had done的说法，排除C

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