_______do you learn English? -I learn English every day.
A. How old B. How often C. How many
We can't ______water here. This water isn't clean.
A, to drink B. drink C. drinking
Do you like ______football? -Yes，I do.
A. play B. playing C. plays
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