Tom was absent from school because he was ill.(because he was ill划线)正确率啊大神们!

问题描述:

Tom was absent from school because he was ill.(because he was ill划线)正确率啊大神们!
五分钟之内有额外加分!

Why was Tom absent from school
对“原因”提问用why.
确保正确,确定用was吗?100%对。