这题为什么选C?

jennyguoguo

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.
A.    between passing
B.    of passing
C.    between its passes
D.    of its passes
E.    as it passes

多谢了，能在讲讲别的选项为么不行吗？

[此贴子已经被作者于2003-7-5 12:06:16编辑过]

jennyguoguo

[此贴子已经被作者于2003-7-5 12:05:51编辑过]

1stzhang

这个题目首先把前两个答案排除，因为passing的动作发出是错误的；E使用从句也不对；比较c/d，between表示两次之间的，所以C更好