We found it interesting ________ scientific experiments.

This kind of computer ________ well. It's made in China.

Don't forget ________ your backpack.

There isn't ________ water in the bottle.

--No, I don't think so.

--________ will you call your dog?

--I'll call it Tommy.

A monkey lives ________ tree and a fish lives ________ the river.

Don't read ________ the sun. It's bad ________ your eyes.

________ a cat. ________ name is Snowball.