When asked why he went there, he said he was sent there __________ for a space f
题型：不详难度：来源：
When asked why he went there, he said he was sent there __________ for a space flight. | A．training | B．being trained | | C．to have trained | D．to be trained |
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答案
| D。 |
解析
| 由于“他”与“训练”之间为被动关系，故可排除A和C。另外，由于被训练进行航空飞行是他被派往那儿的目的，所以宜用不定式，故选D。 |
举一反三
—It’s a long time since I saw my sister.
—__________ her this weekend?| A．Why not visit | B．Why not to visit | | C．Why not visiting | D．Why don’t visit |
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—The last one __________ pays the meal.
—Agreed! | A．arrived | B．arrives | | C．to arrive | D．arriving |
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The children talked so loudly at dinner table that I had to struggle __________.| A．to be heard | B．to have heard | | C．hearing | D．being heard |
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Leonardo da Vinci(1452-1519)__________ birds kept in cages in order to have the pleasure of setting them free. | A．is said to be buying | B．is said to have bought | | C．had said to buy | D．has said to have bought |
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— Robert is indeed a wise man.
— Oh, yes. How often I have regretted __________ his advice! | A．to take | B．taking | | C．not to take | D．not taking |
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