—May I this pair of blue jeans? —Yes you .A. try on; shouldB. try on; can C. have a look;

问题补充：

—May I this pair of blue jeans? —Yes, you .

A. try on; should

B. try on; can

C. have a look; can

D. look at; must

答案：

A. try on; should

(答案→)B. try on; can

C. have a look; can

D. look at; must

解析：本题的含义是我可以试穿这条裤子吗？表示征询对方许可，回答语中只有can表示许可，故不选AD,try on表示试穿某物，have a look表示看一看后跟事物要加at，故选B。