When they knew there was a panda in the zoo, the children could ___ wait to see it.

A model or an experiment in a science class can help us see things which would       remain hidden．

Lily has been in love with Tom ___ since she met him last year.

Faced with the exams, we should work as hard as we can.       , we shouldn’t do it at the cost of our health.

She is honest and trustworthy. I think It's ______no business of hers.