Paper produced every year is ________ the world’s production of vehicles.
________ at the door before you enter my room, please.
________ with care, one tin will last for six weeks.
— Can I have a day off tomorrow, Mr. Johnson?— ________. I can manage without you.
The newcomer went to the library the other day and searched for ________ he could find about Mark Twain.
—Do you have an_______ way to solve this problem?—No, this is the only way, I think.