在△ABC和△DEF中，若∠C=∠D，∠B=∠E，要判断△ABC≌△FED，还要添加的条件为（　　）

A．AB=ED

B．AC=FD

C．AB=FD

D．∠A=∠F

句型转换。

1.That's his cousin. (改为复数句子)

    _______________

2.This is my mother and this is my father. (改为同义句)

   These ______ my ______ .

3.She is my uncle's daughter. (改为同义句)

   She ______ my ______.

4.These are my books. (改为否定句)

   These _____  ______  my books.