To carry the coal to Newcastle

She was in a <u><em>brown study</em></u> and did not notice my entrance.

Who will <u><em>carry the day</em></u> in this war?

A fool's errand

Women should be paid the same as men when they do the same job, for, surely <u><em>what is sauce for the goo…

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

The trade union's seemingly rightful demand is only a <u><em>stalking horse</em></u> to blackmai…

Inspite of his poverty, Ravi believed in <u><em>keeping up appearances</em></u>.

The thief <u><em>took to his heels</em></u> when he saw a policeman on the beat.