Tom has to wear uniforms _____ gym class. [ ]

To solve the traffic problem, more and more bridges ____________ across the river every year.

Did you see Dr Ma yesterday afternoon?— No. When I got to his office, he ______ already.

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.

My train will leave _____ ten so I have to get to the station before nine forty.[ ]