— I beg your pardon? I can’t follow you. —.A. Please be careful.B. Sorry I will repeat t

问题补充：

— I beg your pardon? I can’t follow you.

—.

A. Please be careful.

B. Sorry, I will repeat that.

C. What about?

D. What’s the matter?

答案：

A. Please be careful.

(答案→)B. Sorry, I will repeat that.

C. What about?

D. What’s the matter?

解析：考查交际用语：A. Please be careful.请当心，B. Sorry, I will repeat that.对不起，我会重复的， C. What about?怎么样？D. What’s the matter?怎么了？句意：--请再说一遍，我跟不上。所以选B。