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與過去事實相反的虛擬語氣

請看下面的題目：

—If he __________，he __________ that food.

—Luckily he was sent to the hospital immediately.

A. was warned，would not take                B. had been warned，would not have taken

C. would be warned，had not taken           D. would have been warned，had not taken

此題應選 B。該題考查與過去事實相反的虛擬語氣：此時條件從句的謂語用 had+過去分詞，主句的謂語用 would(should，could，might)+have+過去分詞(www.hz123456.com)：

1. If she had worked harder，she __________.

A. would succeed                                      B. had succeeded

C. should succeed                                     D. would have succeeded

2. If my lawyer ________ here last Saturday，he _________ me from going.

A. had been; would have prevented              B. had been; would prevent

C. were; would                                          D. were; would have prevented 

3. I didn’t see your sister at the meeting. If she __________，she would have met my brother.

A. has come                                             B. did come 

C. came                                                   D. had come

4. You didn’t let me drive. If we ________ in turn，you

__________ so tired.

A. drove; didn’t get                                  B. drove; wouldn’t get

C. were driving; wouldn’t get                    D. had driven; wouldn’t have got

答案：1. D 2. A 3. D 4. D