Barack Obama delivered a speech to 500 local youths during his visit to China, many of were from Fudan University and Tongji University.
Three students in ten will go and _____ to stay in the classroom.
New trucks are widely used in the countryside ______ in the city.
It wasn’t a few years _________we met each other.
—I’m sorry to trouble you, madam.. —_______
________ around the Taimountain Park, the tourists from Hong Kong were taken to visit the Mei Langang Memorial Museum.