Brinton Clark, 16, one of two teen-agers who survived for three days in a snow cave on Mount Hood last week, yesterday asked about her hiking companions after being told by her parents that they were ill.

Dr. William Long said the girl spoke a single word -- "Sick?" -- after having a respirator tube removed from her throat. Clark is being treated at Emanuel Hospital in Portland, Ore., and her condition has been upgraded to good.

The condition of the other survivor, Giles Lewis Thompson, 16, also improved yesterday after doctors at Providence Medical Center in Portland amputated his frostbitten legs below the knees Sunday night.

Thompson was not alert enough to be told about the leg amputations before surgery, Dr. Leon Marx said. The youth, who was still in critical condition after the operation, was described as responsive last night.

Meanwhile, memorial services were held for three Oregon Episcopal School students -- Susan McClave, 17, and Patrick Mcginness and Tasha Amy, both 15 -- and a teacher, the Rev. Thomas Goman, 41, who died on the mountain with five others.

Describing Clark's condition earlier yesterday, Long said: "She's a little depressed psychologically, as you might expect.

He said Clark had been told that the other hikers were "sick," but did not know that she and Thompson were the only survivors among the eight found Thursday.

Twelve climbers from the school and their guide dug in Monday when their descent from Mount Hood was halted by a storm. Two walked out for help Tuesday, three were found dead Wednesday near the cave, and the cave was uncovered Thursday.

Long said that a psychologist and a psychiatrist specializing in working with adolescents would talk with Clark and that he intended to tell her today of her companions' deaths.