题目内容
__________ he had not hurt his leg, John would have won the race.
A. If B. Since C. Though D. When
A。
解析:
if在此引出一个虚拟条件。又如:If he had asked me, I would have had to tell him the truth. 如果他问我,我就不得不告诉他真相了。If I had not got married, I would still have been living abroad, 如果我没结婚,我就会仍然住在国外。
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