Do you know Zhou Libo, the funny host? He always makes us ________.

 Nobody ________ what the future will be like.

At present, lots of people would rather            in the country because there is           pollution in the city.

— What is Grandma cooking in the kitchen? — Fish, I guess. How nice it _______!

--- What’s the matter, Mary? You looked upset.--- I failed again in my math exam. I’m really sorry because I don’t want to ____ my parents down.