1.含有be动词am/is/are的句子,变否定时,直接在be动词后加not；变一般疑问句把be动词提前.举三个例子：She is making a toy.She is not making a toy.Is she making a toy?Yes,she is.No,she isn't.I am laughing.I a...
要写否定,一般问句,肯定回答,否定回答
1.含有be动词am/is/are的句子,变否定时,直接在be动词后加not；变一般疑问句把be动词提前.举三个例子：She is making a toy.She is not making a toy.Is she making a toy?Yes,she is.No,she isn't.I am laughing.I a...