The need for sleep varies ____ from person to person.
考查副词辨析。conservatively“保守地,谨慎地”,alternatively“二者择一地,作为选择,或者”,considerably“非常,相当地”,influentially“有影响地,有力地”。四个选项中,只有considerably能修饰动词vary,表示程度,句意为“不同的人对睡眠的需求差异相当大”。故选C。
If you are intending ____________ just one Schengen country, you will need to apply for the Schengen visa directly with the embassy or consulate of that particular country.
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