根据句意用所给词的适当形式填空,

题目

根据句意用所给词的适当形式填空,
His parents have no time __(look)after him
his __(describe)of the stange man is different form yours
we all know china is a__(develop)country
china has developed __(rapid)these years
he has succeeded in __(work) out the difficult problem

答案

to look
description
developing
rapidly
working