—There was thick haze(雾霾)in our city this spring.What do you think of it?—I think________cars we drive,________pollution our city will have.
Kate knew nothing _______ her mother told her.
There are many kinds of pollution around us, _________ air pollution, noise pollution and light pollution..
You may ________the story book for two weeks.
! Our grandpa is sleeping.
Doing lots of listening practice is one of best ways of becominggood language learner.