______ as the “First Lady of Speech”, Dr Lillian Glass is recognized as one of
题型：不详难度：来源：
______ as the “First Lady of Speech”, Dr Lillian Glass is recognized as one of the world’s leading experts on communication skills.| A．Knowing | B．Having known | C．Known | D．To be known |
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答案
| C |
解析
| know 与Dr Lillian Glass存在被动关系，应用过去分词。故选C。 |
举一反三
At the computer operation test, one is supposed to stay at his own machine, keep his eyes on his screen, ______ to anyone.| A．and not to speak | B．but could not speak | | C．instead of speaking | D．or rather speak |
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With online course Crazy English has over 20 million students all over China _______ the class through the Internet .| A．attend | B．attended | C．attending | D．to be attending |
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In order not to be disturbed ,I spent three days __________ in my study.| A．locking | B．locked | C．to lock | D．lock |
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As we all know, it was _____ that resulted in the terrible car accident.| A．because of her carelessness | B．her being careless | | C．because she was careless | D．she was so careless |
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With a lot of difficult problems ____, the manager felt worried all the time.| A．settled | B．to be settled | C．settling | D．to settle |
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