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).
下列对催化剂描述正确的是( )
用图像可以表示物体的运动规律,图中用来表示物体做匀速直线运动的是( )