Compared with 2 million tons last year, our coal output has increased _____three times; that is to say, our coal output has increased_____8 million tonsthis year.
32. After he left college, he was employed in an international company and _______ there ever since.
31. A large sum of money has been raised for the ____________ of the poorly-educated children in the mountainous districts.
30.Little__ that we were watching his every move, so he seemed to be going his own way in this business.
29. The nutrients in _____falls into the ocean will quickly become available to other living creatures.
28. I don’t think you’ve quite___the seriousness of the situation. You seem to know nothing about it.