If you meet trouble, you can ______ your friends ________ help.
He to New York two weeks ago, and he there three times.
Why not your teacher for help when you can’t finish it by yourself?
the teachers in their school is about 200 and one fourth of them are teachers.
World Expo 2010 Shanghai China people from all over the world to the theme “Better City, Better Life”.
“Where’s Li Hua?” “Look! He tennis on the playground.”