C. purchase D. make shopping
12. You can get all your favorite gifts _______ a discount of 20 percent at Gift Shop.
A. for B. with C. at D. on
13. If a price seems to be ________ good to be true, you had better be on guard.
A. very B. so C. as D. too
14. I find the prices there are usually _________ than in other stores.
A. a good deal cheap B. a good deal of cheaper C. a good deal cheaper D. a good many cheaper