It’s careless him to make the same mistake again. I think it important everyone to be ca

问题补充：

It’s careless him to make the same mistake again. I think it important everyone to be careful in everything.

A. to; for

B. for; of

C. of; to

D. of; for

答案：

A. to; for

B. for; of

C. of; to

(答案→)D. of; for

解析：to到，向；for为了，对于。Of关于，……的。句意：有犯同样的错误，他太粗心了。我认为做每件事要细心对于他来说很重要。Be adj of sb某人怎么样，be adj for sb to do sth，做某事对于某人来说怎么样。结合语境可知选D。