A bat uses a sonar device to (orient itself) to its surrounding world
A. determine its position
B. become impressed
C. form an opinion
D. guard against

I suppose that there is a ___________chance that he could win, but I can’t see it happening, myself
A. thin
B. meagre
C. slim
D. short

Parents and teachers have to try hard to understand the younger
_____
A. generation
B. people
C. adolescents
D. teenagers

This is the time of year when stores ..............their prices, so you can get good deals.
A. mark on B. mark through C. mark down D. mark up

Don’t rush me, I hate having to make ___________decisions
A. sharp
B. curt
C. prompt
D. snap

The opinions of the teaching staff were divided as to whether they should change the course book or follow the old one
A. Some members of the teaching staff were in favour of following a new course book, while others thought they should continue with the old one
B. There were different opinions among the teaching staff about the new more book, and in the end, those who were against choosing a new one won
C. The teaching staff could not agree upon a new course book, so they decide to continue with the old one
D. There was no general agreement among the teaching staff about which they should choose as their
new course book

We have to-______ the hard time hoping that things will change for the better in the future. 
A. maintain B. endure C. persist D. outlive

 Seldom does she refuse to do her friends a good______ , but on that occasion she was too busy to pay attention to other people's problems. 
A. assistance B. turn C. aid D. backing

If Dick had John’s position in the company, everybody believes he would be able to motivate the workers better
A. Everybody who works in this company thinks that John motivates the workers well, so that is why he has a better job here than Dick
B. If Dick were able to motivate the workers better, he would be given John’s present job in the company
C. It is believed that John is not as good at encouraging the company’s workersas Dick would be if he had the same job
D. Everybody in the company thinks that the workers were motivated far better when Dick was doing John’s present job

(Although discovered) the Xray in 1895, professor Roentgen (died) poor and (neglected) without any honours in (his lifetime)