根据信件内容选择最佳选项。Aunt Susan was on a trip to study pandas.Read her letters to May.
①Dear May,
We found some pandas today!We saw a big panda beside a river.You know,it had a cute baby!Then in a bamboo forest,we met another three small pandas.We took lots of photos of them.We were so lucky!It was only the first day of our climb up the mountain.
Love,
Aunt Susan
②Dear May,
We are at the top of the mountain now.We can see a big lake from here.We want to make a fire in the designated area(指定地点) to keep us warm.Tomorrow we'll go back to the village.We had an exciting trip!Say hello to Jerry and I miss him so much!
Love,
Aunt Susan
③Dear May,
We are staying in a village at the bottom(底部) of a mountain.There is a waterfall.It is the most beautiful waterfall on the mountain.The villagers are very nice.One of them is going to go up the mountain to look for the pandas with us tomorrow.
Love,
Aunt Susan