根据短文内容，选择合适的句子填入文中空格处，使短文意思完整。
Dear Li Lei,
How are things going?
Last week I went to Kunming with my family. ____ The weather was nice and warm. We stayed in a nice hotel（宾馆）with a large yard. ____ We went swimming a lot. That was interesting. We had meals in the hotel, too. ____ We also ate a lot of fruits like bananas, pears and pineapples (菠萝).
On Friday, we went to Shilin by bus. The mountains were very beautiful and I took lots of photos. ____ The clothes in the shops were very nice! I liked them very much. ____ Mother told me not to buy any. And I was not happy. But I enjoyed the trip to Kunming.
What about your trip?
I hope all is well with you.
Yours,
Han Meimei
A. There was a swimming pool in the hotel.
B. I wanted to buy some.
C. The next day we went shopping.
D. I had a wonderful time there.
E. The food was delicious.
的O4是一种价格超过黄金的气体，下列有关O4的说法中不正确的是（ ）