You are not young children any more. You three should learn to look after _______ well.A. yourself B. you C. yourselves
So far _____ people have visited the old city in Zhejiang.
---Have you ever _____ the Great Wall? ---Yes, I have.
---_____ riding your bike to the park? ---Good idea.
Liu Sanzi is _____ eight-year-old boy from village.
—Could you post the letter for me? —_______________