单项选择
21. I was _______ at the letter, which was________ to my classmates.
A. amaze; amazing B. amazing; amazed
C. amazed; amazing D. amaze; amaze
22. Living in the dormitory means_________ to take care of yourself, understand each others’
differences and share________ interests.
A. to learn; common B. learning; ordinary
C. to learn; ordinary D. learning; common
23. Could it be in the classroom_____ we had a talk last night _____you left your keys?
A. that; where B. in which; where
C. where; that D. where; in which
