— Four dollars a pair? I think it’s a bit too much.— If you buy three pairs, the price for each will _______ to three fifty.

—Look, those great notebooks are __________in our school store. Let’s have a look.—OK. Anybody can __________ the prices.

－We must act now because time is _______.－Yes. Let’s start.

The students in China often get to school _____ bike, but the students in Japan usually _____ the train to school.

—When did you ____ the top of the mountain?—At 11;45 a.m.