I could have helped him out, to tell the truth, I _____ too busy. A.am B.was C...
Icouldhavehelpedhimout,totellthetruth,I_____toobusy.A.amB.wasC.havebeenD.hadbeen...
I could have helped him out, to tell the truth, I _____ too busy. A.am B.was C.have been D.had been
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