People will live ____________ 200 years old in the future.
__________ is the young woman over there? --- She is my teacher.
The policeman is helping the old woman __________ a heavy bag on her back.
Would you like to go to the cinema to see Inception with me on Sunday? --- __________.
Do you think Maths __________ useful subject?
I’m hungry. __________ my lunch here, please.