21. ---Could you turn the TV down a little bit?
---______. Is it disturbing you?
A. Take it easy. B. I’m sorry. C. Not a bit D. It depends
22. －We had_____ really cold February this year
－I can’t remember______ ____ spring when it snowed in Changzhou .
A. a;不填 B. 不填;the C. the; a D. a; a
