.---There is a lot of smoke coming out of the teaching building.---Really? It _____be a fire, most probably.
Hearing the disappointing news, he was too sad to ____himself.
Any packet __ properly will not be accepted by the post office.
—Cheap food means that everyone can afford to eat well.—___.But what about the long-term effect on the environment?
—Jane, I will graduate this June.What advice will you give me?—Suggest you go you are most needed and you'll benefit a lot from it.
—Sorry, sir.He ____to a meeting soon.