Speaker A: ___ I guess I'm addicted to the Internet.
Speaker: So you'd better quit surfing the Net deep into the night.

Speaker A: ___ I guess I'm addicted to the Internet.
Speaker: So you'd better quit surfing the Net deep into the night.

A.I knew it.

B.Why, it's a pity!

C.I can't help it.

D.What seems to be the problem?

正确答案是C