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考研
Nowhere in nature is aluminum found free, owing to its always______with other elements, most commonly with oxygen.
Nowhere in nature is aluminum found free, owing to its always______with other elements, most commonly with oxygen.
admin
2019-08-08
8
问题
Nowhere in nature is aluminum found free, owing to its always______with other elements, most commonly with oxygen.
选项
A、combine
B、combined
C、being combined
D、having combined
答案
C
解析
owing to是介语短语,后面应跟名词或动名词,its being combined with other ele-ments为动名词短语。其他三个选择答案不合适,因为combine为动词原形;combined为过去分词;having combined为主动态。
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0
考研英语一
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