Let’s ________ and ________ football on the playground.

Mr. Wang told us that the moon ______ round the earth.

I lost________ key to the door yesterday. It was________ unlucky day for me.

It’s difficult for the village children to cross the river for school.— I think a bridge _______ over the river.

What time do you usually go to bed? —_____ about a quarter to ten. [ ]