题目内容
用括号内所给词的适当形式填空
Look! They are all busy ________ (clean) the room for Granny Li except Li Lei .
答案:cleaning
练习册系列答案
相关题目
题目内容
用括号内所给词的适当形式填空
Look! They are all busy ________ (clean) the room for Granny Li except Li Lei .