选词填空（用所给词的适当形式，注意单复数）
doctor enjoy everywhere engineer design bridge
Mike: Your parents are 1._____. Are you going to be a doctor, too?
Baobao: I don’t think so. I’m going to be an 2.____. I 3.______ making things.
Mike: Engineers 4.______ and build roads and 5._________.
Baobao: They design a lot of things and we can see their work 6._______.
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