Four dollars a pair? I think it′s a bit too much　If you buy three pairs the pric

问题补充：

--- Four dollars a pair? I think it′s a bit too much．

--- If you buy three pairs, the price for each will to $3.5．

A. come down

B. take down

C. turn over

D. go over

答案：

(答案→)A. come down

B. take down

C. turn over

D. go over

解析：考查词组：A．come down下降，B．take down 记下，C．turn over翻转，D．go over复习，句意是：--一对4美元，我觉得太多了。--如果你买三对，每对的价格就下降到3.5美元。选A。