__________ the employees’ working efficiency, the supervisor will allow them to
题型：不详难度：来源：
__________ the employees’ working efficiency, the supervisor will allow them to have a coffee break. | A．Improving | B．To improve | | C．Having improved | D．Improved |
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答案
| B。 |
解析
| 此处用不定式表示目的。注意，用于句首作目的状语时，英语习惯上要用不定式。 |
举一反三
After he became conscious, he remembered __________ and __________ on the head with s rod.| A．to attack; hit | B．to be attacked; to be hit | | C．attacking; be hit | D．having been attacked; hit |
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It took a long time for the connection between body temperature and illness __________.| A．to make | B．to be made | | C．making | D．being made |
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—Excuse me sir, where is Room 301?
—Just a minute. I’ll have Bob __________ you to your room. | A．show | B．shows | | C．to show | D．showing |
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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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—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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