21. The man is ______danger to society. Therefore, people around him are in ______danger all the time.
A. the; a B. a; a C. a; / D. /; /
22. The money he spent within a month ________ more than 200 dollars.
A. added B. added up to C. added up D. was added to
23. ----- I’m taking part in the English Speaking Contest next week.
-----______________.
A. Come on B. Good luck C. Well done D. Congratulations
