→ rogerkid:時態..... 06/24 20:29
→ noruas:選C的話, 開頭when要改成Since 06/24 21:14
→ noruas:(但文意也有改變) 06/24 21:14
→ lovewin:原來如此，謝謝上面兩位熱心版友解開我苦思不解的疑惑^^ 06/24 21:15
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.
_______中可填入的選項有:
(A) is extending (B) was extending (C) has extended
(D) had being extended
答案為:(B) was extending
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我想請問為什麼(C) has extended 不行呢??
謝謝
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