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2 tháng 5 2019

answer 1.A, 2.C, 3.A, 4.B, 5.D, 6.A, 7.A, 8.D

2 tháng 5 2019

1. ... Air is one of the many problems we have to solve.
A. Pollute
B. Polluted
C. Polluting
D. Pollution
2. If you want to save money, you should ... the amount of water your family uses.
A. Increase
B. Reuse
C. Reduce
D. Repair
3. These materials can be ... into another packaging products.
A. Recycled
B. Reduced
C. Reused
D. Removed
4. Crops are sprayed with ... to kill insects.
A. Fertilizer
B. Pesticide
C. Water
D. Dynamite
5. Because plastic bags are very hard to ... they will cause pollution.
A. Wrap
B. Collect
C. Litter
D. Dissolve
6. What are you looking ... ? - My picture book. I've lost it.
A. On
B. Off
C. After
D. For
7. The roof ... under the weight of snow last night. (??)
A. Hurricane
B. Earthquake
8. We are going to ... the anniversary for our 50th wedding.
A. To celebrate
B. Celebrated
C. Celebrating
D. Celebrate