2. 外语
  3. Since the last quarter of 2010, there______a rapid fall in the volume of exports in this country.

Since the last quarter of 2010, there______a rapid fall in the volume of exports in this country.

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问题 Since the last quarter of 2010, there______a rapid fall in the volume of exports in this country.
选项 A、is
B、was
C、had been
D、has been
答案D
解析 这是一道语法题，考点是动词的时态。动作发生在过去，但持续到现在，应该用现在完成时。
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成人本科学位英语

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