In order to support the big family, he worked so hard that ______ he made himself ill.
As there is less and less coal and oil, scientists are exploring new ways of making use of ____ energy, such as sunlight, wind and water for power and fuel.
His grandpa was so poor at that time that he had to get up at dawn every day and walk to the factory in distance.
—What do you think of the speech given by the CEO from Hongkong?—Excellent, I have never heard one before.
—Mr Weldon may not be at home then— , I’ll leave him a note.
It’s necessary to be prepared for a job interview. the answer ready will be of great help.