Basically, I'd likely say "If he drops the class now, he will either get an incomplete, if He's lucky, or he could are unsuccessful." It's because there are only the two options, not a range like the opposite examples. PurpleDiane I hope we will the two agree this sentence is https://ezylinkdirectory.com/listings13321069/new-step-by-step-map-for-psychoneurological-specialized-clinic-in-islamabad