—Excuse me, Maria. Can I use your bike?—Sure. Here you are. But you must return it _____ time.
.This CD-ROM can help you learn and have fun_____.
I don’t know ______ a show. Can you tell me?
The computer _____ a television, doesn’t it?
---I’m going on a trip to Japan after the exam. ---Really? ___________!
A boy with two dogs_____ when the earthquake rocked the city.