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

Is she your aunt? What’s ______ name?

He is so careless that he often his school things at home.

Do you know Earth Day?－Sure, it _______ in 1970 to tell us to protect our earth.

I think saving water is more important than recycling paper in our daily life.— I disagree. Recycling paper is saving water.