According to the law, all foreigners have to________with the local police within two weeks of arrival.
I______you a beautiful present for your birthday,but I was short of money at that time.
I ______your address, otherwise I______you long before.
The young man insisted that he______ these watches and______free.
—Would you have told him the answer had it been possible? —I would have, but I ______so busy then.
— It is rather cold here. Shall we light a fire? — No, we______because things are easy to catch fire.