2.When someone( )(短语),they gradually change from beging a ch
2.When someone( )(短语),they gradually change from beging a child into being an adult.
3.A ( ) is a person whose iob is to prepare and cook food,especially in someone's home or in an institution.
4.A ( ) is someone who has a degree in medicine and treats people who are sick or injured.
5.A(AN)____is a person who uses scientific knowledge to design construct,and maintain engines and machines or structures such as robots,railroads,and bridges.
填空并且翻译。