虛擬式were也可以表示與過去事實相反的假設(shè),如：
If I were not busy,I would have come.
希望我能幫助你解疑釋惑.還有一個疑問就是Without his help,we would not have made such rapid progress.主句表示與現(xiàn)在事實相反，從句表示與過去事實相反，屬于混合時間虛擬語氣，所以我覺得應(yīng)該改成we would not make such rapid progress.不知道我的想法對不對如果是含蓄條件（無if從句），可根據(jù)實際情況選擇與現(xiàn)在或過去事實相反的虛擬語氣，不是混合時間虛擬語氣。希望我能幫助你解疑釋惑。