20. "What can I do for you?" or "May I h
题型:选择题
问题:
20. "What can I do for you?" or "May I help you?" is a pet phrase used by _____ .
A.an assistant engineer
B.an assistant manager
C.a helper
D.a shop assistant
20. "What can I do for you?" or "May I help you?" is a pet phrase used by _____ .
A.an assistant engineer
B.an assistant manager
C.a helper
D.a shop assistant