英语文章首字母填空、Bats are the only flying animals.It is known to

英语文章首字母填空、
Bats are the only flying animals.It is known to all that cannot see very well.As b___as a bat is often heard.Yet,they have no trouble fling on the darkest nights and f___ their way round very well.Why can bats fly and see at night? They fly by radar.The bat's radar works the same way a____the radar on ships and planes.As a bat flies through the air ,it makes a sound .I____the sounds hit things,the will come back and the bat's ears will receive the message.In thisway,the bat can know where the things are.Bats go ou for f___ai night.In the daytime,they hang in some dark places.
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