下列对病句的修改不正确的一项是（    ）

已知a²+a﹣3=0，那么a²（a+4）的值是（　　）

A. Look at the duck. It is short and fat.  

B. The pig has a fat body and big ears. 

C. Look! They're Lucy and Lily. T Lucy is from Australia. Lily is from Canada.

D. Mr White is my teacher. He's from the USA.

E. This is Amy, She's my sister. She's a pupil. 

⑴ ____

⑵ ____

⑶ ____

⑷ ____

⑸ ____

摆锤在最右边时，长针部分的操纵器倒钩会卡住齿轮。（ ）