— Come and join us, Jimmy!

— I’m sorry, but I’m really busy now. If I 　　　 time, I would certainly go.

A. have        B. have had   C. had         D. will have

阅读短文，选择正确的答案
Dear Jennifer,
It’s Tuesday, February 11th. I’m really busy(繁忙) today! At 8 o’clock I have a math class. I don’t like math. Then I have a science class. It’s difficult, but it’s interesting. Next, at 10:00, I have a history class. It’s boring. But I have P.E. at 11:00. That’s my favorite subject! I have lunch at 12:00. After lunch, I have a music class. I like my music teacher, Mr. Morgan. He is a fun(滑稽) teacher. School is over at 2:00.After school I do sports for two hours. I’m so tired, but I’m very happy.
Yours,
Lin Mei
【小题1】This is a letter from_______.
A. Jennifer        B.Lin Mei          C.Mr. Morgan
【小题2】How many classes does she have on Tuesday?
A. Four             B. Five             C. Six
【小题3】She likes _______best.
A.P.E.               B. math            C. history
【小题4】Why does she like her music teacher?
A. He is tall.      B. He is tired.      C. His class is interesting.
【小题5】After school, she _______for two hours.
A. listens to music      B. does sports    C. does her homework

—I’m sorry I forgot      the letter for you! I’m really busy these days”

—It doesn’t matter, I’ll post it myself.”

—come and join US. Jimmy! —I’m sorry, but I’m really busy now. If I ____ time, I would certainly go.