He passed through a difficult period _____ after his marriage broke down. 

 She was not______ frightened; in fact, she was nearly frightened to death.   

Mary is very clever and_____ worth teaching , but her brother is not .Look he is now _____ asleep in class.

Carl wanted to play a joke on Bob but gave himself _____ by laughing.

 He began to take political science_____ only when he left school.