I need something for cutting the paper. — Oh, you want a knife? OK, I’ll get ______ for you.

Scientists say it may be five or six years ______ it is possible to test this medicine on human patients.

_____ at the door before you come into the room.

Your sister bought a camera last week, didn’t she? —Yes, and it her a lot.

I’m expecting a digital camera for long, but dad has no time to buy ______ for me.