Question

请各位英语高手们，帮我解答两个单选题

1、­­­­­­­­­A:­­It's necessary and important＿＿＿school teachers to teach their students how to get on well with others.
B:Yes,you said it.
a,of b,for c,from d,to
2、China has made a great contribution＿＿＿preventing SARS.
a,for b,to c,with d,in

我很急，请英语高手们快帮我解答一下，最好有选某个答案的原因，谢谢啦

Answer 1

1. B for It's +adj(形容词)+for sb/sth to do
如果该形容词可以用来修饰此人 应用 It's+adj(形容词）+of sb to do
如 It's kind of you to help me. 这里的you是善良（kind）的
但此题中necessary and important不能修饰school teachers 故用for
用for 的时候形容词necessary and important是表示后面所说的事情是重要必要的
2.B make a great contribution to 是固定搭配
contribute 动词形式也应和 TO 搭配

Answer 2

都选B

Answer 3

是都选B呢。。。
都是固定搭配的考查啊。。。

Answer 4

都选B

Answer 5

都选B