通读下面短文，掌握其大意，然后在每小题所给的四个选项中，选出一个最佳答案。

I had a good time last weekend. I 1 to a beautiful beach on Saturday morning with 2 friend, Lee. 3 was sunny and hot. We had great fun 4 in the water. In the afternoon, we went to a 5. We saw many animals, such as pandas and elephants. The next day, it was rainy, so we went to the museum. I didn't really enjoy it, 6I didn't like old things. Lee found a small boy 7 in the corner. The boy was lost. He couldn't 8 his mother. We decided (决定) to help him. At last, we found the boy's 9. We were very 10.