Choose the right answer to fill in the blanks. (看图完成句子)

A. Thank you. 

B. Good morning. 

C. Nice to meet you, too. 

D. Where are you from?

A: Good morning! 

B: 1______________

A: This is my friend, Nancy

B: Nice to meet you. 

C: 2______________

B: 3______________? 

C: I am from the USA. 

B: Welcome to our school! 

C: 4______________

腰交感干是（）。

A.由腰丛构成

B.由内脏小神经构成

C.由内脏大神经构成

D.由3个或4个椎旁神经节和节间支构成

E.由4个或5个椎旁神经节和节间支构成