Question

6. —The local living conditions (条件) have improved a lot China set up the city of Sansha.

—And more and more people would like to go there for business.

   A. before   B. when   C. since   D. after

Answer 1

6. C

6. C 考査连词的用法辨析。“since + —般 过去时的句子”是现在完成时的标志，根据 “The local living conditions have improved a lot”可以判断用since。所以选择答案C.