I developed very slowly and it took nearly two hundred years I was built as an analytical machine by Charles Babbage.
He must have gone out. I heard the noise of the door ______when I was still in bed.
We think it possible _____ the local government will be able to solve the housing problem.
We agreed ____ here but so far she hasn’t turned up yet .
. Could ______ be in the restaurant ______ you lost your handbag?
One of the requirements for a fire is that the material ____to its burning temperature.