17. The development of permanent teeth, ___ deciduous teeth, begins before birth.(A) likes (B) alike that (C) like that of (D) like which of

26. What is the main idea of the paragraph?(A) Advertising is found everywhere.(B) Advertising is as pervasive as common culture.(C) Advertising is defined as important as culture in the dictionary.(D) Advertising is so effective that university students acknowledge it better than anything else.