() comes back first is supposed to win the prize.

Since Dick was busy, he rarely had time to go to the cinema; _____.

（ ） all her friends and money gone, Kate felt totally hopeless.

It was Thomas Edison that （ ） the electric lamp.

It is a fact _____ most deaths from lung cancer are caused by smoking.

They spent all their money and made no （ ） for the future.

（ ） when she started complaining.

_____ that the earth was flat?

The firm will （ ） the workers （ ） their loss of job.

Tom might not have made such a serious mistake if he _____ your advice.

Only when （ ） in the afternoon （ ） able to leave.

What time would it be convenient _____us to meet again?