There will be _________ pollution this year than last year.
. —I think Mr Zhang may be in his office.—No, he be there. I saw him just now.
—What do you think of the new bridge?—I have never seen _____ before.
. —A new shop ________ for a week nearby. Let's go and have a look.—Great idea. But I'm told it doesn't __________ on Mondays.
“Underground” is the only word in the English language _______ begins and endswith the letters “und”.
People should ______ from ______ down the trees to protect the earth.