21. The party last night was _____ success. We sang and danced until it came to _____ end at 12:00.
A. a; an B. a; the C. the; an D. /; an
22. _____ the heavy rain, people managed to help those who were suffering from the earthquake.
A. Because of B. In case of C. In spite of D. Instead of
23. _____, a boy of seventeen should have had three novels published.
A. Unbelievable as might it sound B. As it might sound unbelievable
C. As unbelievable it might sound D. Unbelievable as it might sound
24. It’s time you _____ some reading or the other students will leave you behind.
A. got down to B. got away C. got rid of D. got over
25. It sounds like something is wrong with the car’s engine. , we’d better take it to the garage immediately.
A. Otherwise B. If not C. If so D. But for that