单项填空
21.—I’m afraid I can’t go to your party; I have lots of things to do.
—________.
A. Take it easy B. No problem
C. So what D. What a shame.
22.—Who takes _____ charge of the work?
—It is in ____ charge of Lily.
A. a; / B. /; the C. /; / D. the; the
23. He is a worthy leader, who never ______ his power which is given by people
