Every day I spend two hours ______ my homework.

－How about ______ basketball this afternoon, Tom?
－That’s a good idea.

She saw a lot of boys ________ football on the playground when she walked past (经过).

All the children like Mr. White very much because he often makes them _______.

—Joe, our daughter’s birthday is next Sunday.
—I want _______ her a computer.

The villagers used to______ drinking water from the river nearby, but now they spend two hours _______ to get it in the mountain because of the dry weather in Yunnan.

I have nothing __________ because Tom has _________ my lunch.

What about _______ football?

He went ______yesterday and ______some apples.

The old scientist has made a great contribution          the moon.