If we'd thought about this before, we ____ be in trouble now. You'll be able to finish the design by the weekend if you ____ working right now. ____ he has become more professional since I last saw him, we won't get a decent result. ____ I known the system would get outdated in a year, I wouldn't have invested so much in it. If you ____ to gain recognition for what you do, you should always do your best.

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