Final answer:
The verb with the correct verb tense is 'floods'.
Step-by-step explanation:
The verb with the correct verb tense to complete the sentence is floods.
The sentence is referring to a habitual action, so the present simple tense is appropriate.
For example, 'The hotel lobby floods with fans hoping for an autograph as soon as word spreads that the movie star is staying in the penthouse.'
Learn more about Verb tense in English