问题
选择题
I want to know how much _____ about the table manners around the world. [ ]
A. do they know
B. they know
C. did they know
D. have they knows
答案
答案:B
I want to know how much _____ about the table manners around the world. [ ]
A. do they know
B. they know
C. did they know
D. have they knows
答案:B