选择合适的单词
There is a long time in my summer holiday (暑假). So my mother, father and I go to Beijing. In the Beijing train station, I see many1walking happily (快乐地). Then we go to Beihai Park. Beihai Park is a 2 park in Beijing. In the park, there are many children 3. Look! Some foreign tourists (外国游客) are boating (划船) in a lake (湖). They look 4. Under a tall tree, a woman is singing. The song is 5. Her son is running and jumping beside her.