• 2021-04-14
    (小明刚抵达飞机场) __________________________, it began to rain.
  • When Xiao Ming had just arrived at the airport

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      每个飞机只有一个油箱,飞机之间可以相互加油(注意是相互,没有加油机),一箱油可供一架飞机绕地球飞半圈,为使至少一架飞机绕地球一圈回到起飞时的飞机场,至少需要出动几架飞机?(所有飞机从同一机场起飞,而且必须安全返回机场,不允许中途降落,中间没有飞机场)

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      Hardly had we reached home ____ it began to rain.

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      We had hardly got into the country ________ it began to rain.

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      I had no sooner reached home it began to rain.

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      No sooner had I got home _____ it began to rain.