英语情景对话-Picking a Suspect out of a Line-up(2)

A: Did you see who the suspect was?
B: I got a perfect look at the suspect.
A: Would you be able to pick him out of a line-up?
B: That'll be easy.
A: Please take a careful look at these five men.
B: Okay.
A: Is the suspect in this line-up?
B: I see him.
A: Which number is he?
B: The suspect is number four.
A: Your cooperation is very much appreciated.
B: I'm happy to be of assistance¹.
 

1 assistance   

n.援助，帮助

参考例句：

• She called and called but no one came to her assistance.她叫了又叫，但没有人来帮。
• He will get the great possible assistance.他将获得尽可能大的帮助。