21. ---- I wouldn’t like to go out with you. I’m so tired.
---- ______ .You promised to go out for a drive. A. Really?
B. Not at all.
C. Come on!
D. No matter. 22. Don’t worry too much about making ___ mistakes. They are ___ natural part of learning.
A. /: a
B. the;/
C. /; the
D. the; the
