—What does PM 2.5 mean?—It's a professional ________ indicating the condition of air pollution.
We have to _________ the wheat as soon as possible because a storm is on the way.
It was not a serious illness, and she soon _________ it.
. Be careful when you cross this very busy street. If not, you may _______ run over by a car.
Sarah, hurry up. I’m afraid you wouldn’t have time to ________ before the party.
. Reading is an experience quite different from watching TV; there are picturesin your mind instead of _______ before your eyes.