The offices are in _________ front of the classroom.
—Are you ready for your trip?—Yes. I’m ________ my suitcase.
When you travel to a city, you’d better buy a ________to get more information about it.
—I’m going to take the driving test tomorrow.—________.
—Have you bought an MP3?—________. I’m listening to an English song on it.
—Have you finished your homework________?—Yes, I’ve done it ________.