David Beckham decided to ________ playing football match forever because he is not energetic enough.
The city park will be cleaner ___________ people stop dropping litter here and there.
-How many ___________ would you like? -Two, please. I have a friend here.
More and more people like to talk with their friends ______ sending messages on WECHAT(微信)
-Who taught _______ Chinese, Jerry? -_____ classmates. They helped me a lot.
The old woman withorange hat is my grandmother.