The casting vote of the chairman clinched the issue.

He always says that he will help, but when it <u><em>comes to the crunch</em></u>, he does nothi…

A black sheep

To see eye to eye with

His plan was so complicated that it <u><em>floored</em></u> his listeners.

He has accomplished a <u><em>Herculean task</em></u>.

It is difficult for me to believe you, so please put down everything <u><em>in black and white</em>&lt…

To play fast and loose

Harassed by repeated acts of injustice, he decided to <u><em>put his foot down</em></u>.