For safety reasons, you need to ...... the two parts of the machine before you procede with the final step.

The happy young man bought a lovely ...... ring for his sweetheart.

The angry wife-to-be quickly broke off the ...... when she found out her spouse had cheated on her.

Pete got ...... to Lilly a couple of months ago and now he'd like to marry her at last.

The office manager knew that her bosses were ...... in some serious business planning so she didn't disturb them at all.