Drag the correct verb phrases to complete the mission commander's optimistic (yet hungry) log about the Mars colonization timeline.

By the time the supply ship finally docks next month, we will have been eating freeze-dried space food for two straight years. Unbelievably, our botanist will have been trying to grow a real potato in the airlock for almost as long!

By the time the supply ship finally docks next month, we will have been eating freeze-dried space food for two straight years.

We use the future perfect continuous (will have been eating) to project ourselves forward in time and look back at the duration of an ongoing action. The phrases "by the time... next month" (future point) and "for two straight years" (duration) make this the only correct choice.

Unbelievably, our botanist will have been trying to grow a real potato in the airlock for almost as long!

Again, the duration ("for almost as long") leading up to a future point requires the future perfect continuous. "Will try" only refers to a simple future action, and "has been trying" does not account for the future deadline.