TASK DEFINITION: In this task you are given a sentence. You must judge whether the main verb of the sentence is in present or past tense. Label the instances as "Present" or "Past" based on your judgment. If there is no verb in the given text, answer "Present".
PROBLEM: It required delicate handling by the captors but was usually enough to stunt the prisoner's magic.

SOLUTION: Past

PROBLEM: Nick grunted, sucking air through his teeth as he started the slow thrusts again.

SOLUTION: Past

PROBLEM: From the entrance walkway he gazes down upon a sea of tables crowded with about a thousand students and a few faculty.

SOLUTION:
Present