【单选题】【消耗次数：1】
She has worked here_______many years.
①
since
②
for
③
during
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【单选题】
The population of many Alaskan cities has __________ doubled in the past three years.
①
larger than
②
as great as
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more than
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as many as
【单选题】
Our factory has ____ for years.
①
many fire equipments
②
much equipment of fire
③
many equipments of fire
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much fire equipment
【单选题】
—Are you a teacher?—No, but I ________. I worked in a middle school for three years.
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【单选题】
—Are you a teacher?—No, but I ________ once. I worked in a middle school for three years.
①
am
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【判断题】
Before he began to study in the university, he had worked in a company for three years.
①
正确
②
错误
【单选题】
The professor has been [填空]at the university for over thirty years.
①
teach
②
taught
③
teaching
④
will teach
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