根据句意及所给首字母提示完成单词

根据句意及所给首字母提示完成单词
1.I'm not i____ in what you said,to be honest.
2.Though the problem is simple,but I don't think a____ can do it right.
3.Look at the black clouds in the sky.It s____ as if it'll rain.
4.Pass me that c____ of paper,please.I want to read it.
5.The books on those s____ are very good.
6.Could you tell me your c____ about the matter?