Old brtins are the worst in Europe when it comes to keeping

Old brtins are the worst in Europe when it comes to keeping their teeth.But bBritish youngsters(11 )more to smile about because (12)teeth are among the best.almost 80% of Britons over 65 have lost all or some (13) their teech acording to a World Health Organization survey.Eating too(14) sugar is part of the problem.Among (15) 12-ear-olds have on average only three missing.decayed or filled teeth.
11.A getting B got C have C having
12.A their B his C therm D theirs
13.A from B of C among D between
14.A much B lot C mony D deal
15.A person B people C children D family