二、单项填空(共15小题;每小题1分,满分15分)
21. _______，I think, all the problems could be solved.
|
A. Double your efforts
|
B. Unless you double your efforts
|
|
C. Making great efforts
|
D. So long as you make efforts
|
22. How did it _______ that such an excellent student wasn’t admitted to that college?
|
A. come out
|
B. come about
|
C. turn out
|
D. turn up
|
