This is a pen.改为一般疑问句
This is a pen.改为一般疑问句
this is a red pen怎样改为一般疑问句
This is a pen.(改为一般疑问句)_____ _____a pen
it is a pen(改为一般疑问句)
this is a pen改成一般疑问句
This is my blue pen.(改为一般疑问句)
句型转换This is my pen【改为一般疑问句】答【 】this【 】pen?Is that her eraser
this is his green pen 改为一般疑问句 those are her keys 改为一般疑问句
This is a pen改为否定句,改为单复数转换改为一般疑问句或提问,肯定句做回答.
This is a clock.(改为一般疑问句)
This is a boy.改为一般疑问句
This is a computer.(改为一般疑问句)