Cloze 2- 3 postponing perform competent definitely solved designed fortunate approach facing practically quality equipped rest purpose end The U.S. system may be ______________ (1.课本第6空) to aim more at producing top of the cream students, but that ______________ (2 .课本第7空 ) may do damage to the big bulk of the ___________ (3 .课本第8空 ) of the student body.