注意：此页面搜索的是所有试题
题目内容
（川北医学院口腔医学院）
One day, the maupstairs heard the _______ of childre_______ ithe park. ( )
· noise; to play
· sound; to play
· noise; play
· sound; playing
· noise; to play
· sound; to play
· noise; play
· sound; playing
参考答案
