Which of the following sentences is not in the same verb tense as the other sentences?

Multiple Choice

About four hours had passed, and the storm was slowly approaching.

Those who had already talked with their parents stared aimlessly out the large tinted windows while sheets of rain poured down fiercely on them.

We have all gathered around the phones to call our anxious parents and update them on what has happened.

Many of us were very tired from lack of sleep, and we tried to relax while waiting for our flight to be called.

Those who had already talked with their parents stared aimlessly out the large tinted windows while sheets of rain poured down fiercely on them.