It’s hard to finish the work in a day. You’d better ____ your friends to help you.
His house burnt down in a big fire.Was the base on which it had stood.
Everyone agreed to the suggestion that the machineat once.
The country’s populationsmall, and most of its populationin the mountainous areas.
—What caused the party to be put off? —the invitations.
I climbed the stairs slowly with a big suitcase, my father with two more.