日期:2011-01-19 10:10
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21. At receipt of your advice we shall open the letter of credit immediately.
22. Computers have made a great contribution to the civilization of the whole world after it began to be widely used.
23. He told me that he would come here or not was still uncertain.
24. Im certain that if you work harder, you are to success.
25. I suggest that he gets up early next morning so as to catch the first bus.
26. The numbers of this claim do not correspond those on the