题目内容
【题目】Grain output _____ greatly in the past few years.
A. increased B. increases
C. has increased D. is increasing
【答案】C
【解析】根据in the past few years可知，本句使用现在完成时态。句意：在过去的这几年里，粮食产量大大增长。
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题目内容
【题目】Grain output _____ greatly in the past few years.
A. increased B. increases
C. has increased D. is increasing
【答案】C
【解析】根据in the past few years可知，本句使用现在完成时态。句意：在过去的这几年里，粮食产量大大增长。