---It is a long time ______ I saw you last. ---Yes.And it will be a long time ______ we see each other again.
,the wind died down and people began to appear on the street.
The number of the workers in this factory300, that is to say, it20%.
A poet and artistcoming to speak to us about Chinese painting tomorrow afternoon.
There was time I hated to go to school.
_____ to playing computer games, he is always absent from school.