In order not to be disturbed ,I spent three hours _____ in m
3个回答

常见考点:spend some time (in) doing something

而此处,考虑到逻辑主语I和lock的关系是被动,所以用locked,即过去分词来作补语,符合英语五大句型结构中的主谓宾补的结构.

补语由形容词,名词,不定式,现在分词,过去分词充当.

如:

We believe him to be guilty.我们相信他是有罪的.

At the meeting we elected him monitor.

What you said made Xiao Wang angry.

I found the classroom empty

He was seen to take his cap off.

We hear him singing in the hall.

He saw his face reflected in the water.

being locked 为动名词,往往在句中做主语,宾语,表语,定语,不作补语.