21. –– I’m sorry to have broken your pen. I wasn’t on purpose.
––_______. I’ve got another one.
A. Go ahead. B. Forget it. C. Come on. D. Take your time.
22. ____ most efficient way to understand thousands of new words is to gain ____ good knowledge of basic word information.
A. A; a. B. The; / C. A; / D. The; the
