根据首字母提示补全对话
A: Do you like a{#blank#}1{#/blank#}?
B: Yes, dogs are my f{#blank#}2{#/blank#}.
A: W{#blank#}3{#/blank#} do you like dogs?
B: Dogs c{#blank#}4{#/blank#} play with me. They also can
understand (理解;懂) me. And dogs can h{#blank#}5{#/blank#} people. What do you like?
A: I like birds. They can fly and sing.
