I became a student ten years . I have been a student 1996. I have studied here about 10 years.A. ago, since, for B. ago ,for ,since C. ago, before, for D ago, in, after
--Liz got the first prize in the speech contest. --____! She’s so shy that she even can’t speak in front of her friends.
____I was walking to school, I saw a boy crying in the street.
I hope there will be ____ cars and ____ pollution in the future, thus people will live longer.
—Could you tell me _________? —More than a month.
—Look! All the students are clapping with excitement. How nicely you sing! —_________.