Over the past l00 years,sea level      steadily as a result of global warming.A.

Over the past l00 years,sea level      steadily as a result of global warming.A.

题型:不详难度:来源:
Over the past l00 years,sea level      steadily as a result of global warming.
A.had increasedB.has been increasingC.increased D.is increasing

答案
B
解析
考查时态,句意:在过去的100年中,作为地球变暖的结果海平面一直在稳定的上升。可知本句描述的是现在已完成的一直在进行的动作,故用完成进行时态。选B。
举一反三
Usually John  __      to school in his father’s beautiful car.
A.has takenB.is takingC.is takenD.has been taken

题型:不详难度:| 查看答案
The zoo keepers is worried because the number of visitors  __       smaller
and smaller.
A.becomeB.becameC.is becomingD.have become

题型:不详难度:| 查看答案
The teacher commanded that the exercises _______ in an hour.
A. was finished   B . were finished   C should finish   D. be finished
题型:不详难度:| 查看答案
What our teacher said ______ me.
A.surprisedB.surpriseC.is surprisedD.is surprising

题型:不详难度:| 查看答案
The shop assistant promised me that the material ____, and what she said ___ to be true .
would be dried easily ; was proved  B. will be dried easily ; was proved
C. dried easily ; proved              D. dried easy ; proved
题型:不详难度:| 查看答案
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