【判断题】【消耗次数：1】
有甲乙两批种子，发芽率分别为0.8和0.7，在两批种子中各任意选取一粒，则恰好有一粒种子发芽的概率为0.24.
①
正确
②
错误
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When we speak to people, we should be ______.
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as polite as possible
②
as polite as possibly
③
as politely as possible
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as politely as possibly
【单选题】
His father began to work ______ he was seven years old.
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as old as
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as early as
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as soon as
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as much as
【单选题】
We traveled to Korea and arrived [填空] 7 o’clock [填空] the morning.
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on; in
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at; in
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at; on
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in; on