当你想知道一卷厕纸多少钱时,你问:
A. How much is a roll of toilet paper?
B. How much is a box of tissues?
C. How many rolls of toilet paper are there?
当你想知道一卷厕纸多少钱时,你问:
A. How much is a roll of toilet paper?
B. How much is a box of tissues?
C. How many rolls of toilet paper are there?