—What are you mailing, Tom? — A textbook a new method of teaching physics. I want my friends to take a look at it.
Recently I bought a beautiful car, ________ was reasonable.
I’m afraid this is the best way ______ we can think of ______ you.
Reading books is very important for developing the students’ understanding of the world, _______?
He sat on the sofa, with his arms ________ and eyes _______ on TV.
_____ you make a promise, you should keep it.