___ for the fact that you were lazy, you could have finished the assignment by now.
A．It were notB．Weren’t itC．Had it not beenD．Had not been
C
考查虛擬語(yǔ)氣。根據(jù)語(yǔ)境可知為對(duì)過(guò)去事實(shí)相反的虛擬語(yǔ)氣，故從句用had + v過(guò)去分詞，Had it not been =" if" it had not been，選C。
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