Weareatyourservice.Don’thesitateto　　　　usifyouhaveanyfur...

问题详情：

We are at your service. Don’t hesitate to　　　　us if you have any further problems.

A. appeal to                            B. turn to

C. come to                              D. apply to

【回答】

B

知识点：动词

题型：选择题