He spends a lot of time the TV set.A. in watchingB. onC. in front ofD. on watching

问题补充：

He spends a lot of time the TV set.

A. in watching

B. on

C. in front of

D. on watching

答案：

A. in watching

B. on

(答案→)C. in front of

D. on watching

解析：注意后面的the TV set是名词，而不是 TV ，watch的宾语应是TV。