用所给词的适当形式填空, 每词限用一次。

praise, disappoint, enter, exchange, disappear

【小题1】Marie ________ the classroom with a smile on her face every morning.
【小题2】—May I speak to Carl?
—Wait a minute, please. He ________ toys with his younger brother.
【小题3】It is known that this kind of trees ________ from the earth since fifty years ago.
【小题4】Luke ________ by the headmaster for his helping the old man cross the road at the meeting last Tuesday.
【小题5】Come on, Brain, or you ________ everyone who loves you.