Our questions were about exercise, use of the Internet and TV.
- A.to watch
- B.watch
- C.watching
- D.watched
答案
正确答案:C
知识点:非谓语动词

句中“exercise”,“use of the Internet”,“…TV”是并列的成分,作介词about的宾语,当动词作介词宾语时,需用v-ing。所以正确答案为C。

略
