题目内容
【题目】Students in Beijing____________ away many books to the Hope Schools since 2009．
A. have given B. give C. gave D. giving
【答案】A
【解析】句意：自2009以来，北京学生向希望学校赠送了许多书。since+过去的时间点，用现在完成时，根据since 2009可知此句时态用现在完成时；故选A。
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题目内容
【题目】Students in Beijing____________ away many books to the Hope Schools since 2009．
A. have given B. give C. gave D. giving
【答案】A
【解析】句意：自2009以来，北京学生向希望学校赠送了许多书。since+过去的时间点，用现在完成时，根据since 2009可知此句时态用现在完成时；故选A。