---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必须，一定；may可以，可能；should

应该。句意：妈妈，我能和你说句话吗？当然，如果你非要说的话。所以选B。