20xx初中英語知識點總結虛擬語氣-wenkub.com
2024-11-20 01:24 本頁面
【正文】
典型例題：I ________ him the answer ________ possible， but I was so busy then.
A. could tell， if it had been
B. must have told， were it
C. should have told， had it been
D. should have told， should it be
解析：先分開看此題，由于設空處在主句，所以先看主句，因為由主句看不出題目所表達的具體時間，所以再看從句，此從句是由but引導的轉折句，所表達的時態(tài)是一般過去時，意為“我那時很忙”，所以，主句發(fā)生的事情是與過去事情相反的事情，因之，主句用could、should、would+動詞原形，從句用過去完成時。
典型例題：Mary is ill today. If she _____， she ____ absent from school.
A. were not ill， wouldn’t be
B. had been ill， wouldn’t have been
C. h
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