--- What about ______ bike? --- Don’t you think it all right to buy him that bike as _____ birthday gift?
33. There was no light in the dormitory last night. So, they ________ to the lecture then.
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.