A. once B. always C. usually D. never 答案:D 指导:由转折词but可以断定.“从来 没有对大猩猩进行过语言方面的研究. 查看更多

 

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All of the flowers now raised here have developed from those _____ in the forest.

A. once they grew      B. they grew once

C. that once grew      D. once grew

 

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All of the flowers now raised here have developed from those _______ in the forest.

A. once they grew      B. they grew once

C. they once grew      D. once grew

 

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All of the flowers now raised here have developed from those ________ in the forest.

A. once they grew              B. they grew once              C. that once grew              D. once grew

 

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All of the flowers now raised here have developed from those ________ in the forest.

A. once they grew              B. they grew once              C. that once grew              D. once grew

 

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______ he is determined to do something, no one is able to make him ________.

A. Once; give up      B. Although; give in

C. As long as; give out    D. If; give away

 

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