( ) I often ride a _______ to work. I think it is a kind of exercise.
China is one______ the first countries in the UN.A./ B. for C. Of
What do you want________?A.to do B. do C. doing
-__________snakes love music? -No,they are deaf.A. Does B. Are C. Do
-What's the time? -It's half ________two.A. pass B. for C. past
These are our books. Please look after_________.