1.A.Five years ago.     ¡¡¡¡B.Twice a year.     ¡¡  C.Since two months ago. 

2.A.What a pity!       ¡¡¡¡B.So I did.         ¡¡  C.It sounds good.

3.A.Yes,I like it.      ¡¡¡¡ B.Very interesting.       C.Of course, I saw it last night.

4.A.It’s kind of you.        B.I feel terrible.         C.No, I don’t know.

5.A.I’m afraid I can’t.       B.That’s right.          C.You’re welcome.