Kate asked the girls to so she could hear what her husband said onthe phone.A. slow down B

问题补充：

Kate asked the girls to so she could hear what her husband said onthe phone.

A. slow down

B. come down

C. settle down

D. break down

答案：

A. slow down

B. come down

(答案→)C. settle down

D. break down

解析：短语辨析。slow down放慢速度；come down下来，下落；settle down安静下来；break down坏掉，垮掉。句意：凯特让女孩们安静下来，以便她能听见她丈夫在电话里说的话。所以选C。