______ from the space, the earth, with water _______ seventy percent of its surface, looks like a blue ball.
It is reported that housing prices of China rose by 1.5% in January this year, ______ with the same month last year, ______ the public doubt deeply.
It was already one in the morning, and my candle was nearly burnt out, _____ I saw the dull yellow eyes of the creature open.
Under more favourable conditions, we _____ better
Estuaries provide both recreation and education for human beings. They also _____ the economy through tourism and fishing.
For more than a hundred years black people had to fight ______ the rights to vote, choose where to live, study and work.