—Look! I found a wallet in the classroom—You should give it to its .He must be upset about losing it.
I’m not sure about the meaning of the word. You’d better look it up in a ____ .
Trees ____ fight air pollution.They are natural air conditioners.
____ it snowed heavily yesterday, nobody in our class missed the lesson.
Tomorrow there’s a programmed about our school on TV,then it ____ by millions of people.
My brother is two meters in height.It’s very difficult to find clothes big enough ____ him.