—Are Li Yan and Wang Mei still living in Pingba? —No, they ____ to Shanghai.
---Does Liu Hua ever guess the meaning of English words?, ---He ______ guesses the meaning, of new words. He uses his dictionary all the time.
He _____ late for school.
______trees we plant, ______ our Mother Earth will be.
---How often are the Olympic Games held? ---_____four years.
---How do you like the book? ---____.