43. Susan had to walk five miles back to the office after realizing she ______ her wallet there.
(A) had left
(B) has left
(C) have left
(D) has been leaving

答案：登入後查看
統計： A(491), B(118), C(65), D(110), E(0) #3107773

詳解 (共 3 筆)

#5828220
→在這個句子中，使用了過去完成式 "ha...
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#5830253
Susan had to walk f...
(共 292 字，隱藏中）
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#6082147

43. Susan had to walk five miles back to the office after realizing she ______ her wallet there.

 (A) had left (B) has left (C) have left (D) has been leaving

after後面是先發生事件：使用had+pp
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