Theystopped _______but they _______nothing.

__the composition, John handed it to the teacher and went out of the room

The agent was about to sign his name to the document_______ , to our surprise, a stranger broke in to prevent him

______ the day went on, the weathergot worse.

Neither I nor he ______ compared the prices of the PC, so ______ he ______ I decided to know more before buying it.