15.A.less B. better C .little D. no
14.A.happier B. stronger C. kinder D. richer
13.A.how often B. how long C. how many D. how much
12.A.look for B. find C. make D. know
11.A.call B. ask C. tell D. talk with
10.A.angry B. sad C. happy D. alone
9.A.friendly B. good C. pleased D. friends
8.A.that B. whether C. how D. why
7.A.always B. sometimes C. often D. usually
6.A.friendly B .kind C. just the same D. quite different