1.Because Halley’s comet changes orbit slightly during the seventy-six-year interval between passing close to Earth, it may veer onto a collision course with a planet sometime in the distant future. E
(A) between passing
(B) of passing
(C) between its passes
(D) of its passes（C）
(E) as it passes
答案是C, 不太明白理由。当然interval between 是个很常用的固定搭配，不过后面应该有具体的两个内容才可以啊，比如interval between xxx and xx ... 请高手指点，谢谢阿！
if you see the set-up: during the interval <preposition>, use between: during the interval between <X and Y> or during the interval between <something plural indicating a repeating event>.
During the interval between freshman year and senior year, she got straight As. During the regular interval between classes every day, she always goes to the street.
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发表于 2011-7-28 17:26:31
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