21. In this peaceful land, people live in perfect harmony with _______nature, far away from _____ noise and worry of the outside world.
A. the; the B. /; the C. the; / D. /; /
22. -----Shall we go fishing this afternoon?
-----Sorry, Bob. My computer doesn’t work, so I’ll have it ______.
A. fixing B. fixed C. to fix D. fix
23. Students should involve themselves in community activities _______they can gain experience for growth.
A. who B. when C. which D. where
