These shoes look very good. I wonder ____. [ ]A. how much cost they are B. how much do they cost C.
[ ]
题目简介
These shoes look very good. I wonder ____. [ ]A. how much cost they are B. how much do they cost C.
题目详情
[ ]
B. how much do they cost
C. how much they cost
D. how much are they cost
答案