--- Will you take up teaching as a career after graduation? --- Hard to say. I _______ go abroad for higher education instead.

Tom hasn’t come to work since last Friday.       he have had an accident?

With all his money, he ________ worry about a little thing like 5 cents!

–Look at that girl! Is it Susan? --No, it _______ be hers. She has gone back to her hometown.

 --Do you think Jack will lend us a hand?--He is the last one to help others. He _____lend his hand, though.