请解释一下理由Thank you for all your hard work last week.I don't th

请解释一下理由Thank you for all your hard work last week.I don't think we___it without Thank you for all your hard work last week.I don't think we___it without you.A、can manageB、could have managedC、could manageD、can have managed这是今年山东高考题第24题,