instruction:
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".
question:
They sensed that they turned many corners until they heard a heavy wooden door opening.
answer:
Past


question:
He stiffened his shoulders and began to back away, but the taunting inner demon rose up and whispered its warning.
answer:
Past


question:
Then I crack open a beer.
answer:

Present