_____________ leaves the room last ought to turn off the lights.
The book ___ three yuan, but it only ___ me two yuan.
The building is ___.
He ___ go to work by bus, but now he ___ riding a bicycle to work.
I don’t feel like ___ now.I’d prefer ___ my homework at present.
---What ____ the population of China ? ---China has a population of 1.3 ____.