would you like ______________, please?
A. two glass of waters
B. two glasses of water
There are some ______________in these ______________.
A. knifes pencil-boxes
B. knives pencil-box
____writer is better known in China, Charles Dickens or Mark Twain?
A. Which
B. Whether
Kate and her sister went to holiday with a cousin of _____.
A. their
B. theirs