A：锰钢
B：液氧
C：汽水
D：空气
用所给词的适当形式填空
（1）The boy decided____(be)an actor at the age of 10.
②What’s the name of the tall____(build)?
③Darwin was a____(success)scientist of England.
④ At 25, Lily____(marry)a handsome man.
⑤The girl can speak several____(language).
