在英语越来越重要的21世纪，学好英语成了大学生的首要目标。为帮助大学生更好地掌握英语知识，特提供以下文章：
1. She did her work____her manager had instructed.
A. as
B. until
C. when
D. though
2.____of the twins was arrested, because I saw both at a party last night.
A. None
B. Both
C. Neither
D. All
3.For some time now, world leaders____out the necessity for agreement on arms reduction.
A. had been pointing
B. have been pointing?
C. were pointing
D. pointed
4.Have you ever been in a situation____you know the other person is right yet you cannot agree with him?
A. by which
B. that
C. in where
D. where
?
5.We've just installed two air-conditioners in our apartment,____should make great differences in our life next summer.
A. which
B. what
C. that
D. they
6.AIDS is said____the number-one killer of both men and women over the past few years in that region.
A. being
B. to be
C. to have been
D. having been
7.She managed to save____she could out of her wages to help her brother.
A. how little money
B. so little money?
C. such little money
D. what little money
8.Fool____Jane is, she could not have done such a thing.
A. who
B. as
C. that
D.like
9.The experiment requires more money than____.
A. have been put in
B. being put in?
C. has been put in
D. to be put in
10. ____for the fact that she broke her leg, she might have passed the exam.
A. Had it not been
B. Hadn't it been?
C. Was it not
D. Were it not