题目内容：

阅读下面短文，在空白处填入1个合适的单词或括号内单词的正确形式。

We were swimming happily 1. my 4-year-old son fell into the adult’s pool. We ran over and pulled him out of the water, only to find his face blue and body still. He was weak and 2.(life). I was so sad that I didn’t hold out any hope.

One person immediately contacted the front desk and called 911. Though we tried our best, we failed. Another friend of mine realized that two off-duty lifeguards, Liz and Alison, were nearby. The sisters, 15 and 18, recently trained by the Red Cross in CPR, took 3. compression and breathing. Alison started compression and Liz gave 4. (instruct). All at once 5.filled my mind were regret and hope. “Help, somebody, do anything!” Then it happened. My son opened one of his eyes and began to cry. I held him firmly and burst out 6.(cry). When back home, he 7. (allow) to get out bed the next morning. At that time, I could finally let out a sigh of 8.(relieve).

How 9.(forget) the experience was! Without those kind people, my son wouldn’t have been saved! To all those kind people I owed my son’s coming back to life and I wanted to express my sincere 10. (appreciate) to them.