China has seen _______dramatic decline in rural poverty, but the problem is on _______increase in Africa and South Asia.
such a difficult problem, he didn’t know what to do.
The purpose of new technologies is to make life easier, it more difficult.
They searched in the forest for a whole day, to find the three children who had lost their way the day before.
--- How did it that you left the room without telling anybody? --- I had thought the meeting was over.
is no doubt that the Rockets will defeat the Washington Wizards in the next game.