I sat down in my seat waiting for the plane to take off. A line of ________ came over and filled all the empty seats.

After a ________, we were told that sack lunches were available（可得的）for $5. As I reached for my wallet to buy one, I heard a soldier ask his buddy ________ he planned to buy lunch. “No, that seems like a lot of money for just a sack lunch. I’ll wait ________ we get to Chicago.” His friend agreed.

I looked around at the other soldiers. ________ of them were buying lunch. I walked to the back of the plane and handed the fight alendant（服务人员）a $50 bill. “Take a lunch to all those soldiers.”

After I finished ________, I went to the restroom. A man stopped me. “I saw what you did. I want to be ________ of it. Here, take this. He handed me $25.”

Soon after I ________ to my seat, the Flight Captain came to me and said,”I want to shake your hand. I was a military（军队）pilot. Once, someone bought me a lunch. It was an act of ________ that I never forgot.” I was embarmassed when applause（掌声）was heard from all of the passengers.

Later, I walked to the front of the plane ________ I could stretch（伸展）my legs. A man who was seated about six rows in front of me reached out his hand, wanting to shake ________. He left another $25 in my hand. ________ we landed in Chicago, I picked up my belongings（行李）. While waiting to ________ the plane, a man passed by and put something in my pocket. Another $25!

I walked over to the soldiers and handed them $75. “It will ________ you some time to reach the base（基地）. It will be about time for a sandwich. God bless you” I said.

These soldiers were giving their all for our ________. I could only give them a couple of meals. It seemed so little.