—Can you tell me _____when the teacher came into the classroom?—Sorry,I don’t know.
--- ________ David be the new chairperson of the Students’ Union?--- He _______ be, but I’m not sure.
—Liu Xiang has announced the end of his sporting career.— . But I think he is still one of the greatest athletes in China.
Jack is dishonest. He always some excuses for doing something wrong.
—Mr. Ma has gone to Guangzhou on business.—Really? Do you know ?
---Why did you buy one more tie?you have got more than ten ties,---A man can never have _____ many ties.