25. You ought to _______ us with rice and dishes of vegetables, but you didn't.
A. provide B. have given C. offer D. have served
25. It is time for class to start. The teacher __________ be in the classroom now.
A. can B. should C would D. shall
24. The opening day of Expo 2010 Shanghai China we have been forward looking to_____ to arrive.
A. being B. be C. is D. will
22. _________the peace talk between the two countries will break down depends on your attitude.
A. If B. Whether C. Weather D. That
22. It was __________ you had done ________made it possible for you to improve your English.
A. that/ that B. that / what C. what/ what D. what/ that
21.—May I use your computer?
—Sure, _____________
A. cheer up B. come on C. go ahead D. nothing
