— I’m sorry, Bill. I took your notebook by mistake.
— ________. They look almost the same.
You’re not right
It doesn’t matter
I hope not
I’m not sure
—Excuse me, ____ is the post office? —About 500 meters away.
—Where ____ you ____ lunch? —At home.There was no school lunch
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.