He's going to ____ an engineer when he ___ up A do,grow B do

He's going to ____ an engineer when he ___ up A do,grow B do what's he going to do when he -----(grow)up? What's he going to do when he ____ some money?A is going to what is he going to do when he（）（grow）up填什么急急! when he grows up,he's going to do what he wants to do ___ an engineer,so he know exactly what to do. when l grow up,i want to be an engineer rather than ___ a te when he grous up ,he is going to be an engineer什么意思 when he grows up,he is going to do what. He ____ a docyor when he grows up.(A.is B.will C.is going to I'm going to be an engineer when I grow up改为一般疑问句 【改为一般疑问句】I'm going to be an engineer when I grow up