题目内容：

完形填空

阅读下面短文，从短文后各题所给的四个选项（A、B、C、D）中，选出可以填入空白处的最佳选项。

I don't know your name, and I'm guessing that you are about high school age. I ________ you in action yesterday as you saved a little boy from ________ at Lake Elmo beach.

I was sitting on a bench with my friends,   ________ their children played in the water. I remember   ________ you taking off your shorts, grabbing your ________  device（设备）and heading into the water. My friends and I noticed at that moment the little boy's ________ moving up and down. He couldn't have been more than two years old and ________ to be alone in the water.

You got to him, put your floatation device around him, and   ________ him back to shore. We could see the boy was ________ as you carried him out of the water and laid him on the ________  . You started doing compressions（按压）on his chest, that is when we knew it was a bad ________  . We reached you and knew you needed ________ . I picked up my phone and dialed 911.

Soon, the ambulance ________ and several doctors were there to assist you. You appeared ________ as you walked away, as anyone would be. I ________ if this is your first rescue — it doesn’t matter. What you did was heroic, and I ________  you.

Had you been a few seconds later, this ________ could have ended quite differently. You were alert （警觉的）and ________ what was going on in the water, responsible for watching over a hundred kids at that time. ________ your fear, you took action. Because of you, the little boy and his family are________  together today.

1.A. accompanied   B. witnessed    C. expected   D. ignored

2.A. drowning    B. missing      C. bleeding   D. falling

3.A. although  B. unless      C. if          D. while

4.A. imagining     B. minding      C. stopping    D. noticing

5.A. digital       B. convenient   C. rescue      D. nuclear

6.A. feet         B. head         C. legs        D. arms

7.A. pretended     B. determined   C. appeared    D. prepared

8.A. allowed    B. lifted       C. swam         D. dropped

9.A. frozen       B. weak         C. excited      D. calm

10.A. beach       B. stone       C. board       D. bench

11.A. meaning     B. process     C. presentation D. situation

12.A. food         B. money       C. help         D. time

13.A. pulled in  B. set out     C. passed by   D. ran away

14.A. proud        B. confident    C. independent  D. frightened

15.A. know         B. predict     C. wonder      D. believe

16.A. applaud      B. protect     C. doubt       D. greet

17.A. idea         B. performance  C. game        D. story

18.A. curious about B. aware of    C. afraid of    D. confused about

19.A. But for      B. Regardless ofC. Except for D. Thanks to

20.A. pitifully    B. strictly   C. happily     D. sincerely