21.I wanted to catch early train, but couldn’t get ride to the station.
A. an; the B. /; the C. an; / D. the; a
22. improve his English, he does more and more reading and writing every day.
A. So as to B. So that C. In order that D. In order to
23. —I’ sorry. I at you the other day.
—Forget it. I was a bit out of control myself.
A. shouldn’t shout B. shouldn’t have shouted
C. mustn’t shout D. mustn’t have shouted
