21. The reason he was late for school was he overslept this morning.
A. why; that B. why; because C. which; that D. which; because
22. — Would you mind if I turned on the TV and watched CCTV news?
— . As a matter of fact, I also like watching CCTV news.
A. No, you can’t. B. Yes, I do. C. No, go ahead. D. Ok, no problem.
