句型转换，每空一词
That is my math book.（改为一般疑问句）
______________ _____________ your math book?
It is on the desk.（对划线部分提问）
______________ _____________ it?
Are these your cousins?（做肯定回答）
______________, _____________ are.
That is an English book.（改为复数句子）    
______________ are English ______________.
His name is David.（改为同义句）
______________ _____________ David.