--Who’s the man over there?Is it Mr Black?----It _____be him.He’s much taller.
Lucy is going to be a computer programmer when he _______ college.
Linda is going to take ________ lessons because she wants to be an actress.
I’m going to be ______ engineer.
Mary is going to practice _______ basketball every day.
---What is he going to ________ when he _______ up? --- He’s going to be a doctor.