21. All of the things there are inexpensive, with prices from $1 to $10.
A. ranging B. decreasing C. possessing D. spreading
22. Eating too much fat can heart disease and cause high blood pressure.
A. result from B. contribute to C. distribute to D. devote to
23. We are taught that business letters should be written in a formal style in a personal one.
A. rather than B. other than C. better than D. less than
