句型转换。
This is a blue pen.（对划线部分提问）
________ _______ ?
That is Tom’s watch.（改为否定句）
That ______  ______ Tom’s watch.
Is his name Frank?（作否定回答）
________, _______ isn’t.
These are my parents.（变一般疑问句）
________ these ________ parents?
He is a good boy.（变成复数句）
_________ are good _________.