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Select the correct verb forms to complete the frantic chef's kitchen schedule.
By the time the first guests arrive at 6 PM, we _____________________________ the main course, and the pastry chef _____________________________ decorating the five-tier cake.
The correct answers are will have prepared and will have finished.
Use the Future Perfect tense to describe an event that will be finished before another event in the future. Because the food must be ready before the guests arrive, will have prepared and will have finished are the only logical choices. If you used "will prepare", it would mean you only start cooking when the guests walk in!