If you don't know the word, why don't you in the dictionary? A. look up them B. look it up C. look up it
——_____ water do you need? ——A cup is enough(足够的).
They watch TV _____ a week.
I’m thinking about ______ to the mountains for vacation.
This time I want to do ____________.
Li Ping always gets up early and he is late for school.