—What are you going to be when you grow up?

—A(n) ____. I like to draw pictures very much.

A．artist

B．actor

C．programmer

D．pilot

Bring an extra pencil with you ___ something goes wrong with this one during the exam. 　　[ ]

A. in case 　　　　

B. in case of 　

C. so that 　　 　　

D. in order that