1 . In June 2019, Curtis Whitson and his family decided to go backpacking along central California's Arroyo Seco River. Things went _______ for the first two days. On June 16, Whitson, who was _______ with the area, led the trip to a waterfall in the Arroyo Seco narrows (峡谷).

Whitson had _______ to rappel (绕绳而下) down the side of a waterfall along the river. _______,when they reached the waterfall, Whitson realized that _______ his previous trip through the area, the water currents (水流) were too strong to pass. “My heart _______ when I realized that.” Whitson told CNN. To make matters worse, the rope was missing. Since going back the way they had arrived was _______ as well, they tried to _______other routes to get around it. But their _______ proved fruitless. With food running low and no cellphone reception to ________ help, he decided to carve a “GET HELP” message on the side of his water bottle and threw it across the waterfall in the ________ that someone would find it. Then they went back up the river to a small beach to ________ out for the night.

Sometime after midnight, the three adventurers were ________ by a welcome sound — a helicopter flying overhead. Since it was too dark to conduct a(n) ________, the officials asked them to stay warm for the night, and promised to ________ a team the following day.

Shortly after being ________, Whitson discovered that two hikers had tripped upon their water bottle and, upon seeing the urgent ________, reported the issue to the officials. Whitson says, “They didn’t ________ their name or phone number. They just did what was right in their heart, and most importantly they took it ________. The Whitsons hope the two good hikers will reveal their ________ so that they can express their gratitude in person.”