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. The popularity of the film shows that the reviewers' fears were completely__.
A unjustified
B unjust
C misguided
D unaccepted
2. The river is already __ its banks because of excessive rainfall, and the city is threatened with a likely flood
A parallel to
B level in
C flat on
D flush with
3. The ratio of the work done by the machine __ the work done on it is called the efficiency of the machine.
A against
B with
C to
D for
4. We have done things we ought not to have done and __ undone things we ought to have done.
A leaving
B will leave
C left
D leave
5. During the famine, many people were __ to going without food for days.
A sunk
B reduced
C forced
D declined