1. Water pollution can put negative ... on our health
A. contamination B. affects C. effects D. problems
2. How can light pollution ... animals ?
- It can make animals change their behavior patterns
A. cause B. make C. affext D. lead
3. The dove is a universal ... of peace
A. symbolizing B. symbolize C. symbolic D. symbol
4. The city has an atmosphere which is quite ... You will never feel like that in other places
A. important B. normal C. unique D. common
5. ... about the storm that stroke Hanoi last night ?
A. Did you hear B. do you heard C. Have you hear D. Did you heard
6. Many people ... because of the earthquake last week
A. did injure B. injured C. have injured D. were injured
7. When I looked at the river, I knew it ... for a long time
A. has contaminated B. had been contaminated
C. was contaminated D. contaminated
8. All flights to Ha Noi had to be cancelled ... the storm
A. as a result B. due to C. because D. so
9. When we were young, we ... in the river near our home
A. used to swim B. have swum C. had swum D. were swimming