21. They are getting things together in ______ preparation for ______ journey we have planned.
A. the, the B. a, the C.\, the D. the, a
22. --Shall I give you a ride? --Thank you. ______.
A. It wouldn’t be better. B. Of course you can. C. If you like. D. If you are convenient.
23. Carl surprised everyone by ______ from behind a chair.
A. bringing up B. springing up C. making up D. putting up
