21. — Honey, I'd like to go to South Africa for the World Cup this weekend.
— You must help me with the decoration of the house.
A. Go ahead. B. That's great! C. Forget it! D. Why?
22. I was told that Fudan University. 10:15 flight would take us to Shanghai in time to reach ___
A. the; / B. the; a C. a; the D. /; the
23. You will succeed in the end ____ you give up halfway.
A. even if B. as though C. as long as D. unless
