Choose the word or phrase (A, B, C, or D) that best completes the sentence.
1. Many students are working ____________some practical projects.
A. in
B. of
C. at
D. on
2.__________my own experience, concentration is the key factor.
A. From
B. To
C. By
D. With
3. Human beings are trying to be independent _________fossil fuels in modern life.
A. out
B. off
C. of
D. on
4.I really can’t put ___________________with what you are doing these days.
A. out
B. up
C. off
D. aside
5. Linda is proud ____________________her achievements in her study.
A. with
B. of
C. on
D. to
6. The students are ___________________to take part in the charity.
A. threatened
B. introduced
C. forgotten
D. asked
7. The food supply was __________________, and we had to ask for help.
A. redundant
B. unsatisfactory
C. unnecessary
D. insufficient
8. Some species are protected by law, but they are still on the ________________of extinction.
A. scare
B. verge
C. threat
D. danger
9. ___________is a science of elements that can change the world.
A. Mathematics
B. Chemistry
C. Physics
D. Biology
10. The fire was quickly __________________thanks to the firemen’s effort.
A. laid off
B. taken away
C. set apart
D. put out