“Was the driving pleasant when you vacationed to Mexico last summer?" “No, it ___ for four days when we arrived, so the roads were very muddy." [ 时态考点 ] A. was raining B. had been raining C. would be raining D. have rained
A.
1
B.
2
C.
3
D.
4
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【单选题】We are concerned with consumer demand, the demand created by the final purchaser of goods.
【单选题】Consumer Demand and Development of Green Cars The day automakers put the earth at the top of their agenda will go down in history. Reading this book, one gets the sense that day is coming, major autom...
A.
U. S. government has made progress in reducing the carbon-dioxide gas.
B.
Major automakers will do something to reduce the pollution produced by cars.
C.
The gas emitted by cars is the source of American air pollution.
D.
People should take measures to reduce air pollution.