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

问题补充：

— Could I have a word with you, mum? — Oh, dear, if you .

A. can

B. may

C. must

D. should

答案：

A. can

B. may

(答案→)C. must

D. should

解析：这题考查情态动词的用法：must表示“偏要”，句意是：--我可以和你说话吗？--哦，天哪，如果你偏要的话。选C。