听录音，选择正确的回答。（每小题读两遍10分）
（1）A. It's fine.
B. It's March.
C .It's Friday.
（2）A. How do you do?
B .Nice to see you, too.
C. Thank you.
（3）A.We have three.
B. There are three.
C .We are three.
（4）A.This is Mike speaking.
B.I am Mike.
C. It is Mike. 
（5）He has some lessons.
B. He is not at home.
C .He's got a headache.