21. Much to the disappointment of the neighboring countries, the Japanese government refuses to admit ______ crime they did in ____ World War II.

A. the; the     B. /; the        C. /; /          D. the; /

22. Country life gives him peace and quiet, which is ______ he can’t enjoy while living in big cities.

A. that          B. why       C. where           D. what

23. English is a language that many young people around the world _____not speak perfectly but ____at least understand.

  A. may; can           B. would; might           C. will; must            D. could; might