Question

When he was a boy,he used to go there and watch A,to repair bicycles B,bicycles to be

When he was a boy,he used to go there and watch
A,to repair bicycles B,bicycles to be repaired C,bicycles being repaired D,repairing bicycles
______the diamond,he had to look for a place to hide it
A,Having stolen B,Having been stolen
C,Stolen 原因

Answer 1

A错，没这种watch to do用法。
B错。动词不定式有表将来的含义，显然他是常常看修车，没必要说 什么 常常看 车将被修。
D错，没怎么遇到watch doing 的用法。
watch和see相似，有watch somebody do和watch somebody doing，前者强调经常看到某人做，后者强调偶尔一次看到某人做某个动作。
第二个，选A。他偷了东西，所以想找个地方藏起来。
因为steal是他发出的动作，不被动，B错。同理C错。

Answer 2

B 观看自行车被修的过程
A 排除法 C是指人被偷 B是指人已经被偷 不过。。。楼主说句实话 努力学学英语吧

Answer 3

第一题选D
第二题选A（动词have做句首要加ing是动名词。）

Answer 4

C