问题
选择题
— My parents have been to Hongkong.
— Really? When ______ there? [ ]
A. have they gone
B. have they been
C. did they go
D. will they go
答案
答案:C
— My parents have been to Hongkong.
— Really? When ______ there? [ ]
A. have they gone
B. have they been
C. did they go
D. will they go
答案:C