—Must I go through the radiation (辐射) check when I come back from Japan at the airport these days?—Yes, you ______.
This book______Tom’s,because his name is on the book.
______should not be______to go out at night.
—____do you improve your English? —I improve it___listening to tapes.
----Could you please sweep the floor? ---_____________. I have to do my homework first.
You shouldn’t drink ______water before sleep.