al evidence began to__________, suggesting that thenew drugs had a wider range of useful activities than had been predicted fromexperiments in animals.

Go _____the street, and you can see a park by the river.

Are you going to have a football game on Saturday ________ on Sunday —On Sunday.

(2012·重庆高考)—________ you interrupt now? Can’t you see I’m on the phone?—Sorry Sir, but it’s urgent.

What color is the ruler — ________.