—Excuse me, but can you tell me which road I should take to the post office?— __________ of the four roads will do.
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.