阅读下列材料， 并从所给的六个选项（A、B、C、D、E和F）中选出符合各小题要求的最佳选项。选项中有一项是多余选项。
The people below travel abroad. Read the following stories and decide what problem each traveler experienced while traveling.
小题1:_______ David got lost in an isolated place. To make matters worse, he had an accident and couldn’t walk freely. So he was in great need of timely help.
小题2:_______ Paul had to buy a hamburger and ate it in the park instead of eating his mother’s delicious chicken, with which he couldn’t go through the customs.
小题3:_______ Ann was stopped at the customs because she was carrying drugs without a doctor’s prescription. How regretted she was not to have done that!
小题4:_______ Sally offended some of the people in the town she was visiting by wearing inappropriate clothes. She should have found out about local customs and followed them.
小题5:______ Jack didn’t obtain a transit card when he changed planes an airport, which made him very worried. There was no doubt that he was not allowed to get on board.

A．My mother was worried about me. She cooked me all my favorite dishes and put them into a box to take with me on my journey. But the customs officer inspected all the plant and animal products at the airport. Unfortunately it was illegal for me to bring into the country the kind of food my mother had given me and so it all had to be thrown away.

B．It was very hot so I put on some shorts and a T-shirt to go sightseeing. I hadn’t gone very far when I found everyone was looking at me, and they didn’t seem friendly to me. One woman even spat on me as I walked past. I decided to get off the crowded streets and so I turned down a small, quiet street.

C．During the four-day walking tour, I was amazed by mountain scenery and the ancient ruins we passed on our hike. On the last day, we arrived at the ruins of Machu Picchu in time to see the sunrise over the Andes. I spent the day visiting the ruins of that ancient Inca city before catching the train back to the capital city of the country.

D．When I got off the plane at the first airport. I saw someone handing out cards to some of the passengers, but I didn’t know what they were for, so I didn’t take one. When I tried to board the second plane they asked for my transit card, which I didn’t’ have. I was worried they were going to send me back to London.

E. I had been walking for about an hour when suddenly I slipped and fell down a riverbank. I hurt my ankle and couldn’t stand up. I didn’t know how I could get back to the village. I hadn’t told anyone what I was going, so no one would know where to look for me when they realized I was missing.
F. When I arrived at my destination, a customs officer at the airport looked in my bag and found the pills in a small box. He wanted to know what the pills were for and why they weren’t in their proper bottle with my name and the doctor’s name on it. I explained that the bottle had been too big and heavy. Then he wanted to know if I had a letter from my doctor explaining about the pills.