请问这题选A还是B ,请说明原因,谢谢Don’t ______ to let me know if there’s anything I can do for you.A. hesitate B. reject C. puzzle D. thrill

请问这题选A还是B ,请说明原因,谢谢
Don’t ______ to let me know if there’s anything I can do for you.
A. hesitate B. reject C. puzzle D. thrill

A 如果我能为你做什么,不要犹豫让我知道.