单项选择题
Asia __________ by most experts to be the cradle of human civilization.
A．has been always considered
B．has always been considered
C．always has been considered
D．has been considered always
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单项选择题
American linguist Noah Webster was among the first to __________ the growing difference between American and British usages of English.
A．realize
B．recognize
C．research
D．reckon
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单项选择题
Even if they are on sale, these refrigerators are equal in price to, if not more expensive than, __________ at the other store.
A．the one
B．others
C．that
D．the ones
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