There have been several new events __________ to the program for the 2008 Beijin
题型：不详难度：来源：
There have been several new events __________ to the program for the 2008 Beijing Olympic Games. | A．add | B．to add | | C．adding | D．added |
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答案
| D。 |
解析
| 由于add与其前的new events为被动关系，所以要用过去分词。 |
举一反三
No matter how frequently __________, the works of Beethoven still attract people all over the world. | A．performed | B．performing | | C．to be performed | D．being performed |
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__________ this cake, you’ll need 2 eggs, 175 g sugar and 175 g flour. | A．Having made | B．Make | | C．To make | D．Making |
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