作者lovewin (思念天上的你们)
看板Eng-Class
标题[文法] was extending vs. has extended
时间Thu Jun 24 19:55:44 2010
When Johns Hopkins University in 1876 joined undergraduate education with the
most advanced graduate instruction and research, American education ________
its reach toward the farthest frontiers of scientific and scholarly discovery.
_______中可填入的选项有:
(A) is extending (B) was extending (C) has extended
(D) had being extended
答案为:(B) was extending
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我想请问为什麽(C) has extended 不行呢??
谢谢
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1F：→ rogerkid:时态..... 06/24 20:29
2F：→ noruas:选C的话, 开头when要改成Since 06/24 21:14
3F：→ noruas:(但文意也有改变) 06/24 21:14
4F：→ lovewin:原来如此，谢谢上面两位热心版友解开我苦思不解的疑惑^^ 06/24 21:15