从方框中选词并用其适当形式填空

（1）My pen pal ____  a brother and a sister. 
（2）Larry ____  math because she thinks it’s difficult. 
（3）The Greens ____ from the USA. 
（4）Please write and ____  me about your country. 
（5）This is a ____  robot(机器人).  It can do a lot of things.

⑴How old are you?____                            A. She's fine.

⑵How is she?____                                     B. I'm eleven years old.

⑶How much is the fan?____                     C. I have ten.

⑷How many pens do you have?____       D. It's ten yuan.

⑸How beautiful!____                                E. Thank you.

在根尖的结构中，吸收水分和无机盐的主要部位是（  ）