根据上下文意思,将对话内容补充完整。A: Look at this picture. {#blank#}1{#/blank#}
B: Yes, it's a picture of the zoo.
A: {#blank#}2{#/blank#}
B: There is a monkey, a panda, a pig and some birds in it.
A: {#blank#}3{#/blank#}
B: The monkey is in the tree.
A: Is there a pig in front of the house?
B: Yes, there is a pig {#blank#}4{#/blank#} the house. It's playing with the panda.
A: Look at the birds. They can sing well.
B: {#blank#}5{#/blank#}
A: They are in the trees.
B: Oh, the animals are very happy.