New technology _____ to make sure the cars, taxis, buses and trains we use _____

New technology _____ to make sure the cars, taxis, buses and trains we use _____

题型:0103 月考题难度:来源:
New technology _____ to make sure the cars, taxis, buses and trains we use _____ the air.
A. is used; not to pollute
B. has used; is not polluted
C. is being used; do not pollute
D. has been used; not pollute
答案
举一反三
— Flight MU257 _____. I must be off now.
— Have a nice trip.
A. is being announced
B. has announced
C. was announcing
D. had been announced
题型:山东省模拟题难度:| 查看答案
Now the world"s attention _____ the stocking markets, as they have great influence in the world"s economy.
A. is fixing on
B. has fixed on
C. is being fixed on
D. had been fixed on
题型:江苏模拟题难度:| 查看答案
This new method of teaching _____ for the time being in our school. It will be carried out all over the city.
A. is experimenting
B. is experimented
C. is being experimented
D. has been experimented
题型:湖南省模拟题难度:| 查看答案
— Why haven"t you moved in yet?
— Oh, the apartment _____.
A. is painted
B. has been painting
C. is being painted 
D. has been painted
题型:陕西省模拟题难度:| 查看答案
We can"t move in the new house now because it _____.
A. has been painted
B. was painted
C. is being painted
D. is painted
题型:天津模拟题难度:| 查看答案
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