I used to think Jack was not a man to count on, but I have changed my ______ as he saved an old man from the fire.
Men and women should be treated equally according to the law, but _____ there is great room for improvement.
--- What about ______ bike? --- Don’t you think it all right to buy him that bike as _____ birthday gift?
--- Please tell James that he has got the highest mark in the final examination.--- _______. He never did so well before.
This ____ girl is Mary’s cousin, who is very lovely.
---Look at these tracks. It _____ be a wolf.” ---Don’t be so sure. I think it _____ be a fox.