高考问答代办各种证件公司:看看这道选择题！6
来源：百度文库 编辑：高考问答 时间：2024/05/05 22:51:03
good morning. sir. is this your first visit to shanghai by air?
____________.
a.of course b. no, it is c. yes, it is. d. sorry, i don't know
____________.
a.of course b. no, it is c. yes, it is. d. sorry, i don't know
C. Yes it is
c