I spent all my spare time ___ the Internet.1.surf 2.to surf 3.sur_英语解答

I spent all my spare time ___ the Internet.
1.surf
2.to surf
3.surfing
4.surfed

人气：148 ℃　时间：2020-04-05 23:03:03

解答

I spent all my spare time surfing the Internet
spent some time (in)doing sth/on sth