—It’s hard to believe that Jack should have fought with the policeman.—Yes. If one ____ ask for trouble, it can’t be helped.

—Excuse me, where are we going to have our class meeting? —I’m not sure. Ask our monitor, please. He  __      know.

I didn’t know his address yesterday, otherwise I __________ him a visit.

I can’t find my English book. I must ___ it at home this morning.

— Tom is never late for work. Why is he absent today ?— Something _______ to him.