Which sentence includes a gerund as the subject of the sentence? 1. When the doorbell rang, the family was playing ping-pong in the basement.
2. Because Martin was wearing hiking boots, crossing the ravine was no trouble.
3. Miriam had hoped to attend the show, but she missed it because she was studying.
4. Squeezing his eyelids tightly, the boy extended his splintered finger toward the nurse.