1.l want to [A ] the answer to the broblem.Could you help me?
A come up with B came up with
C catch up with D come up
解析：come up with 想出,為固定短語.catch up with 趕上,不符題意.to后面要接原型,故B錯誤,正確答案為A.
2 It is very important [ A ] people to have food and water every day
A for B of C with D about
解析：
It is + adj for sb to do sth做...對...來說很.為固定搭配,當形容詞為形容人的品質(zhì)時介詞用of,如：
It is kind of you to help me.
3.He thought of a good way to solve the problem[改為同義句】
He [ came] [ up ] [ with ] a good way to solve the broblem.
解析：理由同選擇題一.
祝開心~!