第二部分:英语知识运用(共两节,满分45分)
第一节:单项填空(共15小题;每小题1分,满分15分)
从A、B、C、D四个选项中,选出可以填入空白处的最佳选项。
21.To this end, an all-round, balanced and effective reform of the international system is thus _______ must to prevent __________ future repeat.
A.the; the B.a; the C.a; a D.the; a
25. ---You ought to have educated your son not to have eaten so much junk food, such as fried chicken, roasted mutton, smoked bacon and the like.
---I _______ .
22. In order to _______ the heart of his former sweetheart, the young man gave up smoking and alcohol, worked extra hard but all his effort ______ waste.