题目内容：
根据材料，回答问题。A
A man has a bird．It is very clever．Every clay the man speaks to the bird．“Hello!”he says．“Hello!”the bird answers．“What are you doing?"says the man．“What are you doing?”says the bird．The man is not at home one day．A thief comes in．He is taking many things．“Hello!”The thief hears the bird’s words．“What are you doing?”The thief is very afraid．so he does not take any things and runs out of the house．
The man teaches the bird________． A．how to say something
B．how to sing songs
C．how to eat something
D．how to dance
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