问题
选择题
--- Do you know _____ Mr. Black’s address is.
--- He may live at No. 18 or No. 19 of Bridge Street. I'm not sure of _____.
A．what; which
B．where; which
C．where ; what
D．what; where
答案
答案：A
搜题请搜索小程序“爱下问搜题”