问题
选择题
— _____________ I come in, Mr. Green?
— Yes, come in, please. [ ]
A. Must
B. May
C. Need
答案
答案：B
搜题请搜索小程序“爱下问搜题”
— _____________ I come in, Mr. Green?
— Yes, come in, please. [ ]
A. Must
B. May
C. Need
答案：B