What do you want to be when you grow up， a doctor or an engineer？
___________． I want to be a scientist（ ）
| A． |
Neither |
B． |
Either |
C． |
Both |
What do you want to be when you grow up， a doctor or an engineer？
___________． I want to be a scientist（ ）
| A． |
Neither |
B． |
Either |
C． |
Both |
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