题目内容
Land animals are believed ______ from sea animals.
| A．to develop | B．developing |
| C．developed | D．to have developed |
D
解析试题分析：考查固定句型；句意：陆栖动物被认为是从海洋生物发展而来。Be believed to have done 被 认为已经做了某事，故选D项。
考点 : 考查固定句型
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启东小题作业本系列答案We hurried all the way to the airport, only ______ that the flight had been cancelled because of the foggy weather.
| A．being told | B．to be told | C．having told | D．to have been told |
His first book next month is based on a true story.
| A．published | B．to publish | C．to be published | D．being published |
_______ on both sides of the street _______ excited fans who wanted to see the famous singing star.
| A．Standing; was | B．Waiting; were |
| C．Arriving; was | D．Living; were |
Having an outdoor meal is always fun, but it can also be disappointing if ________.
| A．planned not carefully | B．not planning carefully |
| C．not planned carefully | D．not to be planned carefully |
Until we lose them, scarcely＿＿ how much pleasure and happiness our ordinary lives offer.
| A．we realize | B．do we realize |
| C．did we realize | D．we have realized |
That company wants to reduce prices to increase its market share, and this is _______ we differ from it.
| A．what | B．which |
| C．where | D．why |
Only when _______ hard _______ make your dream come true.
| A．do you work; you can | B．you work; you can |
| C．you work; can you | D．do you work; can you |
No. 1 Middle School of Anxiang is the very place ______ Song Zhenyu, the Provincial science top of Hunan in 2014, was studying.
| A．that | B．which |
| C．where | D．from which |