The police arrived at the crucial momentent saved the girl
The children should be placed into a place of safety（安全）
He is too busy ,and let me go replacing 代替）
My mothe is a doctor .she works in a bighospital改为复合句
My mother is a doctor who works in a big hospital
The girl was so shy that she reveived many books from her friends.改为简单句
The girl received many books from her friends,feelling shy
Students can choose whether to study at home or play outside改为被动语态
Whether to study at home or play outside can be chosen by students
那个学校的变化使他们感到很惊奇
They feel amazed at（三个空）the change of the school
We must stop using the waste books.
We must give up（两个空） using the waste books
我们真的不应该用纸巾
We really shouldn't use paper （中间和后面没有限制填词）下同
这条河不像过去那样干净了
The river is no longer as clean as it used to be
妈妈在上班的路上看到了我的英语老师
My mother saw my English teachen on her way going to work
鲍勃喜欢他妈妈为他做的衣服
Bob loves the clothes his mother made for him
所有答案在原题上填的,