My students are interested ______ reading.
We’ve walked for a long time.Let’s stop ____a good rest
A Wechat (微信) is an invention __________ can help people talk to friends, share photo, ideas and feelings freely.
_____ of the water _____ polluted. We must try to protect our environment.
Pleasetellme______.Ihavesomegoodnewsforhim.
—You’renewhere,______? —Yes,I’mfromDujiangyan.Icameherelastweek.