用这个句型造几个句子：as/too/how/so+adj+a(an)+名词

It's emitting as pure a white light as possible
Ann is too stupid a student to learn math
How tall a child he is.
He is so good a teacher
He is too kind a guy to refuse.他是如此善良以致我不忍拒绝他
How established a technical writer is he