－It's very cold．Do you think I should open the window?－________

A．No, you can't．

B．Yes, I like．

C．No, I don't think so．

How about going to the movies tonight?

A．Really．I can't believe it．

B．I bet you'll do well．

C．I'm sorry, I can't go out tonight．

－I'm really worried about the speech contest tomorrow．－ ________

A．Of course．It was difficult．

B．I bet you'll do well．

C．That's a good idea．

－Why don't we go for a walk?－________

A．That sounds good．

B．Don's worry．

C．Great, thanks．

－The light is still on．－Oh, I ________．

A．forgot to turn it off

B．forgot to close it

C．forgot turning it off

－Would you do me a favor?－________

A．I don't know．

B．Sure, what is it?

C．Yes, I can．