Is your pen?—Yes,it is.不能用Yes,this is.
Is your pen?—Yes,it is.不能用Yes,this is.
is this( )Japanese pen?yes,it is
is this your pen?----yes,it's. 改错
Is this your pen?Yes,___(thank).
-Is this your pen?-Yes,-----------(thank)
Is this gutar your Yes,it is( )
Is this your book?Yes,it is
Is this your pen ? 答案是 Yes , it is.为什么No,it isn't.不对?谢谢
Is this your pen Yes,I think it's her pen.
改错句 Is your pen black --------------------yes ,it is
yes,it is your
is this your desk ------yes,it i______