－What did you do ________ your last dayoff －I took my dog _______ a walk.

It is rather cold here. Shall we light a fire? — No, we______because things are easy to catch fire.

George hasn’t applied to the department for theposition.—What He was to ________ yesterday.

This is the only thing _______ I can do for you.

What’s the matter with John He has been sitting there for hours.— A postcard from his father_______ an attack of home-sickness in him.