21.一I’d like to take a long holiday.
一 . We are too busy!
A. Don’t worry. B. Forget it. C. It’s all right. D. I can’t follow you.
22. You should do the things worth ____, and if you have difficulty _____ them, you can turn to your family.
A. doing; doing B. doing; to do C. being done; to do D. being done; doing
