21. ________ seeing the damage he had done， the child felt ashamed.

A) By B) On C) At D) For

22. Remember that customers don‘t ________ about prices in that city.

A) debate B) consult C) dispute D) bargain

23. I hope that you‘ll be more careful in typing the letter. Don’t ________ anything.

A) lack B) withdraw C) omit D) leak

24. This crop does not do well in soils ______ the one for which it has been specially developed.

A) outside B) other than C) beyond D) rather than

25. These two areas are similar ________ they both have a high rainfall during this season.

A) to that B) besides that C) in that D) except that

21-25 BDCBC