---Oh dear, why are you killing time this way? ---I can’t find anything worth ___________.
The question is too difficult and we found ________.
He had to speak in a loud voice in order to make himself_________.
Judy didn’t answer . ______ , she turned and walked away.
I was tired _____ listening to classic music. Let’s listen to the pop songs.
At horse races, everyone has already studied the form (类型) of the horse______.