______, you were always there to help, and I will always treasure that.

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

. Dream of the Red Chamber is _____ worth _____ because we can learn a lot about the noble families in the feudal society.

I can’t meet you on Sunday. I’ll be ________ occupied.

His report was so exciting that it was   __   interrupted by applause（掌声）.