—Could I have a word with you mum?—Oh dear if you A. canB. mustC. mayD. should

问题补充：

—Could I have a word with you，mum?

—Oh，dear，if you ．

A. can

B. must

C. may

D. should

答案：

A. can

(答案→)B. must

C. may

D. should

解析：考查情态动词。Can能够；must偏偏，一定，非要；may可以；should应该；句意：妈妈，我可以和你说句话吗？哦，亲爱的，如果你非要说的话。所以选B。