—Will there be more people in 100 years, do you think?—____, I hope.
—________ do you usually go to school,Simon? —By bike.
Do you know ________?
In China,some of the students ________ the river to school by ropeway. A.live B.drive C.cross
—Dad,why must I stop ________ computer games? —For your health,my boy.
Thanks for ________ me to cross the road(马路).