Beth is a shy girl. Any things can affect her{#blank#}1{#/blank#} . She often feels unhappy. She wants to {#blank#}2{#/blank#} friends with her classmates, but she doesn't know how to talk {#blank#}3{#/blank#} them. Helen is a nice girl. She often {#blank#}4{#/blank#} Beth jokes and makes her{#blank#}5{#/blank#} . Having Helen around her (Helen在身边), Beth doesn't feel {#blank#}6{#/blank#}any more. She {#blank#}7{#/blank#} Helen to be her friend, but she doesn't know what to do. Could you give Beth some {#blank#}8{#/blank#} ? Please call us{#blank#}9{#/blank#} 25681089. If you do that, she will {#blank#}10{#/blank#} better.

    If you are asked the question "What colour is the sky?" I believe you will answer blue. But I am afraid you are{#blank#}1{#/blank#}. The sky has no color. When we see blue, we are looking {#blank#}2{#/blank#} the blue sunlight. The sunlight {#blank#}3{#/blank#} on the little bits of dust(灰尘) in the air.

    Is the sky full of {#blank#}4{#/blank#}? I am sure that you are asked this question, {#blank#}5{#/blank#}. We know that there is air all around the world. We could not live{#blank#}6{#/blank#} air. Planes could not {#blank#}7{#/blank#} if there is not any air. If we go far enough {#blank#}8{#/blank#} from the earth, then we will find there is no air. Perhaps we can answer some of our questions now.{#blank#}9{#/blank#} is the sky? The sky is space. It is all around the world. There is nothing but the sun, the moon and the stars {#blank#}10{#/blank#}space.