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

SOLUTION: Past

PROBLEM: Shelby giggled, " That's sweet. "

SOLUTION: Past

PROBLEM: " By advancing science, protecting the environment and creating jobs ?

SOLUTION:
Present