It says that bats (蝙蝠) are almost blind (瞎的). Do you know h{#blank#}1{#/blank#}   the bat finds the way? In fact (事实上), bats find their ways w{#blank#}2{#/blank#}  the help of their ears. Bats make a sound that we can't h{#blank#}3{#/blank#}  at all. They cry when they fly and the echoes (回声) of these cries come back to their ears. In this way they can k{#blank#}4{#/blank#}    where they should go. Bats f{#blank#}5{#/blank#}  out in the evening. In the daytime, they just stay together in their homes.

      When the evening c{#blank#}6{#/blank#}   , they begin to go out and look for f{#blank#}7{#/blank#}  . The next morning, they come back from work to sleep until the evening. Some people t{#blank#}8{#/blank#}  that bats are bad animals. In fact, they are very u{#blank#}9{#/blank#} .  They c{#blank#}10{#/blank#}  and eat pests (害虫). This is very good for people.

    Andy is 12 years old. He is one of my best f{#blank#}1{#/blank#}. He is a top student in Class 6. But he doesn't have a good diet.

    Every morning, he doesn't eat breakfast. It isn't right. I think breakfast is very i{#blank#}2{#/blank#} for him. It helps him start the day w{#blank#}3{#/blank#}. He has lots of snacks like chocolates, sweets every day. They make him fat. It's bad for his health. Andy shouldn't eat too many snacks any more. In vegetables and fruits there are many vitamins. But he h{#blank#}4{#/blank#} eating them. These days he doesn't feel good.

    I think he needs to c{#blank#}5{#/blank#} his diet. And he needs to exercise more. I'm sure he'll be better.

— I think it is the w{#blank#}1{#/blank#}. It has really bad service.