Obama has been elected ___ first black president of the United States, and the international society expects to have ____ new USA under his leadership.
A 不填；the B a; the C. the ; a D the ; the
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—Why didn’t you tell him about the meeting?—He rushed out of the room_____I could say a word.
| A．before | B．until | C．when | D．after |
According to statistics, a man is more than twice as likely to die of skin cancer _________ a woman.
| A．than | B．such | C．so | D．as |
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.
| A．primary | B．alternative | C．instant | D．unique |
Mary kept weighing herself to see how much _______ she was getting.
| A．heavier | B．heavy | C．the heavier | D．the heaviest |
At times ,worrying is a normal, ________response to a difficult event or situation—a loved one being injured in an accident , for example.相关知识点
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