The smiths returned home from their holidays,only to find the house_A.had broken intoB.was broken into C.had been broken into D.broken into
问题描述：
The smiths returned home from their holidays,only to find the house_A.had broken into
B.was broken into C.had been broken into D.broken into
答
答案D
2种理解。首先房子是被破门而入。那么A错。
如果B对，C肯定也对。这个是理解成find后面省略了that，引导宾语从句。
排除法选D
实际上是find的用法
find sth done 发现什么被如何
答
C
斯密斯一家度假回来，竟然发现房子被洗劫。
首先房子是被洗劫的，所以应用被动语态。A、D排除
而他们回来已经是过去（returned）房子被洗劫应是过去的过去，用过去完成时
选择C
答
C斯密斯一家度假回来,竟然发现房子被人破门而入了.only to find 表示“意外发现”；the house had been broken into是一个宾语从句,作find的宾语.我们知道,find这个动作已经过去了,而the house had been broken into...