______nature reserves _______us learn more about protecting animals.A．Studying ;
题型：不详难度：来源：
______nature reserves _______us learn more about protecting animals.| A．Studying ; help | B．Studies ; helps | C．To study; helping | D．Studying; helps |
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答案
| D |
解析
试题分析：句意：研究自然保护区有助于我们了解更多的关于保护动物的知识。动名词做主语后面的谓语动词用单数形式；故选D。 |
举一反三
He got up early ___________ miss the early bus.| A．to | B．in order not to | | C．for | D．because of |
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We must hurry up. There are few minutes _______.| A．to leave | B．leaving | C．left | D．leave |
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My pen pal Ann found it difficult ______ Chinese well.| A．learning | B．learn | C．to learn | D．learned |
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Ms Jones plans _______ her vacation in China.
A. spending B. spend C. to spend |
---Would you mind ______ here?
---Sorry. I’ll go somewhere else.
A. my smoking B. not smoking C. not to smoke |
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