题目内容
【题目】Over fifty countries _______ the AIIB(亚投行) so far.
A. joined B. was joining
C. had joinedD. have joined
【答案】D
【解析】
试题分析：句意：到目前为止五十多个国家加入了亚投行。根据so far可知该用现在完成时，所以选D。
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题目内容
【题目】Over fifty countries _______ the AIIB(亚投行) so far.
A. joined B. was joining
C. had joinedD. have joined
【答案】D
【解析】
试题分析：句意：到目前为止五十多个国家加入了亚投行。根据so far可知该用现在完成时，所以选D。