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 increased | B.has been increasing | C.increased | D.is increasing |
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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。 |
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