There is no light in the room. They must have gone to the lecture.__________?

The number of people in the world__________ about 6 billion and large quantities of waste ____ each year.

Stay awake！You should know that it ________to sleep in class.

Three months ____ before we knew it.

– Have you moved in the new house?
– Not yet, the rooms ____.

The film ____ this Sunday.

The boy whom you lent the bike to ____ by a car.

–You used to live in the city, ____ you?
–Yes, but so far I’ve already get used to ____ in the countryside.

--- I haven’t finished my essay because the computer broke down when I was downloading the required data last night.
--- Really! You could have turned to me. I ______ mine.

—How was the journey?
—Tiring! I caught the train at the last second but all the seats      . I stood all the way.