Chon dap an dung:
1. It is useful...students...receive constructive feedback on their progress
A. for/to B. to/in C. for/on D. on/to
2. There are millions of galaxies and they are separated...one another...vast distances
A. from/by B. for/by C. to/by D. from/in
3. My English is so limited. Please be patient...me. I have to practice more
A. with B. on C. from D. round
4. He was...face any hardship in fulfillment of his duty
A. willing to B. belong to C. clear to D. harmful to
5. When he left school, he went...business with his brother
A. on B. in C. into D. for
6. She was terrified...the thought of being alone
A. in B. at C. about D. with
7. The village is so...the river that their water has to be pumped in from the nearest water supply
A. far from B. far away C. over against D. next to
8. She certainly looked friendly...her lawyer when we saw them
A. by B. on C. with D. of
9. I decided to set up my own business because I was...just being a cog in a machine
A. tired of B. fond of C. keen on D. interested in
10. You won't last long in your job if you carry on being so...the customers
A. kind of B. care for C. rude to D. keep up
11. Many small birds travel at night when they are safe...attacks by hawks
A. through B. around C. from D. under
12. She was quick...understanding what we wanted her to do
A. to B. on C. at D. in
13. Our study is very important...our future and useful...our country
A. for/on B. in/to C. in/of D. for/for
14. He is excellent...solving mathematical problems
A. on B. at C. to D. of
15. Make sure both surface are free...dust and grit
A. from B. on C. off D. by