Select all sentences whose tense correctly matches the future time meaning.
The operation runs from ten until noon; at eleven the surgeon will be operating.✓Правильный ответ
The ferry docks at nine; at eight it will have crossed the bay halfway through its voyage.
By the end of the year, the cooperative will have built twenty affordable homes.✓Правильный ответ
The crew promises to finish the kitchen before opening day; on opening day the crew will be installing it.
Объяснение
The surgeon's operation is underway at eleven, and the houses are a completed total by year-end. The ferry sentence uses a completion form even though the voyage is still in progress, while the kitchen sentence uses a progress form despite a finish-by promise.