阅读下列短文,从每题所给的A、B、C和D四个选项中,选出最佳选项。
A

Kot:I hate long journeys. Lastwinter I went to Mexico City with my
 family. When wearrived at the airport inLondon, our flight wasdelayed
 because of aterrible storm. Luckily, I hadmy tablet
 with me, so Idownloaded an ebook. We were waiting
 there for five hours but I was reading an exciting
 story, so the timewent quickly.
Jess: Last July, I went to a language school in the UK. I made some new
friendsand when I wasn’t studying, we spenttime together. One weekendwe went to a music festival for teenagers. It was
raining all day, but we had a lot of fun. Most people 
werewearing boots, but I didn’t pack any, so my new
 sandalsgot really wet and muddy. The music was
 brilliant, and Ikept my dirty sandals as asouvenir!
Alliso:Last summer I went on aschool trip to Edinburgh. On the first 
 day we wentsightseeing-my favorite placewas Edinburgh Castle. However,
 I was walking all dayin uncomfortable shoes, so by
late afternoon my feet werehurting. That evening
I decided to stay in the hotel to rest. What were my
friends doing while I was in thehotel? A tour guide
took themon an exciting night tour ofthe city-by bus!
21. Which tip can be suitable for Kot’s travel experience?
A. Don’t download too many apps.
B. Make sure to check for landmarks.
C. For outdoors events, go prepared for weather.
D. It’s OK to take a good book with you when you travel.
22. Which word best describe Jess’s attitude to her weekend experience ?
A. Positive.     B. Negative.      C. Critical.      D. Skeptical. 
23. The TIP “ Wear comfortable shoes for walking hours.” could match ___.
A. Kot    B. Kot’s family       C. Alliso  D. Jess