【题目】— There is nothing wrong with the television， _______ there?

【题目】_________ dangerous it is for a child to swim alone in a river!

【题目】--- ______ are their keys?

【题目】A: _ did you come so late to your office this morning?

【题目】Just before the English class， I suddenly realized that I _______ my English textbook at home.

【题目】He is not funny, and he is always very s.

【题目】It is getting cold. It’s ________ colder today than it was yesterday.

【题目】Thinking back to the past years, many people wonder _.

【题目】Don't l at that old man. It's not polite(礼貌的).