2. We____ good friends for years. (　 )

A. are 　　B. have　 　C. have been　 　D. would become

1. In the past two years Jack____ great progress in maths. (　 )

A. made 　B. had made 　　C. was making 　D. has made

Dear Mr Lee,

I was very glad to get your letter. Thank you for your invitation. I'd like to go to your beautiful school, but I just couldn't. I am going to a friend's birthday that will happen to be on December 8.At the end of next month, so I will fly back to New York. I really feel sorry to lose this good chance to enjoy myself with you.

Best wishes.

Yours sincerely,

John

10. send 改为sending

9.

8. talked 改为said

7. become 前加had

6. 去掉it

5. even 改为still

4. 去掉the