Those_____ have caught H1N1 disease must be kept off from us.

下列各句中，画线的成语使用不恰当的一项是（ ）

wer is a kind of quality, ______ is ______ ittakes to do anything well

Little Bob is often educated by his parentsto be good and friendly to anybody even if ________.

Tom studies _______. He _______plays with his friends.