Answer:
Yearn
Explanation:
The sentence is written in the present tense because the speaker uses the phrase "these (...) days" which it's an indication that the days are near in time, they are ongoing, and the verb "are" in "we're" which is the present form of the verb "be. So, the verb that would correctly complete the sentence should be one in the present tense, and since "yearn" is in the present tense, it is the most suitable of all choices.
