21. ____ Olympic Marathon is 26 miles and 385 yards, ____ distance from Marathon to Athens.
A. The; the B./; a C. An; a D. /;the
22. I prefer a flat in the downtown area to _____ in the suburb, for I want to live near my school.
A. one B. that C. it D. this
23. However I tried to read it, this sentence just doesn't make _____. Could you explain it to me?
A, sense B. meaning C. thought D. idea
24. In my childhood, I was often ________ by Mother to mind my behavior.
A. hoped B. demanded C. allowed D. reminded