I don’t think it is a good way. Can you ____________another one?
—Joan’s been to Beijing . What about Jack ? —_______
—Hey, Jack. Waste paper mustn’t ________ here.—Sorry, I won’t do that again.
—How long has Henry’s father_______?—About two months.
—We should _______ humans from ________ down too many trees. —I agree with you. Trees are very important to us.
—I have no idea ____________ tell her the bad news. —I think tomorrow is the best time.