Question

4.   ―Does the bookstore__________ math books?

―Yes. Do you want to 一________ one?

A. sell; buy                          B. sell; sell

C. buy; buy                           D. buy; sell

Answer 1

4.  A考查动词词义。问句询问"这个书店卖数学书吗？"，： 答语应是"是的，你想要买一本吗？"。故答案选A。