A、Missing her family. B、Eating the mosquitoes. C、Counting the helicopters. D、Drinking the dirty water. D原文提到作者就是靠喝那些脏水维持生存的。故选D。

Three months ago I flew to Burma with my boyfriend, Johan. The plane was a small one and our seats were near the back. The sky looked very black as we took off, and throughout the flight, we kept our seat belts fastened. Twenty minutes later we flew into a terrible storm. The plane rolled and shook in the wind. We were both very frightened. I couldn’t remember anything after that until I opened my eyes. I didn’t know where I was. Slowly I realized that the plane had crashed. I was in terrible pain and I couldn’t move. "Johan," I called, but he didn’t reply. It was dark, but I knew that he wasn’t in his seat. I heard groans and I worked out that possibly six other people were still alive. When daylight came, I could see all the bodies around me. Johan was on the other side of the aisle, but I knew that he was dead.
    After a day or two the other voices stopped and I was alone. But the rescuers didn’t come. "They must be on their way," I told myself. I didn’t know that we were in a swamp in the middle of a jungle and that the helicopters couldn’t fly in the heavy rain. Outside the window the flood water was going slowly up. But that water saved my life. I managed to stay alive by drinking that dirty water. At night the mosquitoes came. I was out of consciousness because of pain and hunger. Then I heard voices. I pushed my hand out of the window and amazingly someone grabbed it. The rescue team had arrived... nine days after the crash.
23. What happened 20 minutes after the plane took off?
24. What did she see when daylight came?
25. In what way did the speaker manage to stay alive?