用方框中所给词的适当形式填空，每空不限填一词，每词f限用一次。

dream, model, earth, fever, invent

 
Last Friday, I had a terrible_________ , so I didn’t go to school.
“Chinese________” is a very popular topic these days.
Little boys like_________ cars very much.
He _________ many things since he was fifteen years old.
The_________ goes around the sun.