—Mike, the office is in a mess; it's your turn to clean it up. —________ I did it yesterday and the day before yesterday.
It was a pity that the great writer died _________his works unfinished.
In order to change attitudes _______ employing women, the government is bringing in new laws.
--The room is so dirty.____ we clean it? ---Of course.
The Chinese is _____brave and hardworking people .
No bread eaten by man is so sweet as ______earned by his own labour.