Has Timmy finished his painting yet—I guess not. He______on it when I walked past the classroom.

The young couple couldn’t afford a new house ____, they wouldn’t have bought an old one

We students can _______ food and old clothes to the homeless people, and the teachers can __________ learning skills for the poor children.

Liu Xiang and Yao Ming are famousplayers.____of them have set a good example to us.

The woman pulled her hat low down ____ her eyes in order not to be recognized by the angry crowds