Detailed Instructions: 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:Instinctively Chives shrank back a few steps as the heir rehearsed a few half swings, the club striking the stone floor with the odd spark.
Solution:
Past