The doorbell rang and Mrs Carson {#blank#}1{#/blank#} (open) the front door. Her heart sank when she saw Mrs Burbridge. Whenever Mrs Burbridge called, she stayed {#blank#}2{#/blank#} hours and hours.

    " Good afternoon, Mrs Carson," Mrs Burbridge said, " Do come in." Just as Mrs Carson had feared. Mrs Burbridge stayed for several {#blank#}3{#/blank#} (hour). It was nearly six o'clock and Mr Carson would be home {#blank#}4{#/blank#} work soon.

    Mrs Carson kept thinking about {#blank#}5{#/blank#} she would ask Mrs Burbridge to leave without {#blank#}6{#/blank#} (make) her angry. "Has your husband got home from work yet?" Mrs Carson asked. "Oh, yes," Mrs Burbidge answered, "he always {#blank#}7{#/blank#} (get) home at about five o'clock." "It's nearly six o'clock. Won't he be worried about you?" Mrs Carson said.

    "I thought of that," Mrs Burbridge said, "but it's so pleasant here. We've had such a {#blank#}8{#/blank#} (love) afternoon. You know what I'll do. I'll ring up my husband {#blank#}9{#/blank#} tell him to come round, too. May I use {#blank#}10{#/blank#} (you) phone, please?

    In 1834，the clock tower in London was burned down. People {#blank#}1{#/blank#}(plan)to build a new clock which would be the{#blank#}2{#/blank#}(big)and best in the world. So the clock had to be big and keep very good time. The big clock {#blank#}3{#/blank#}(make)in two years. Five more years later the tower was finished. Then people put the big clock in the tower, and made it ring out for the first time {#blank#}4{#/blank#}July 11, 1859.

    In order to give the big clock a good name, people held a meeting. Someone wanted to call it the Queen of Bells, and someone thought Victoria was good. At last, a man named Benjamin Hall stood up. He was a big man. Before he started to speak, someone shouted, "Why not call it Big Ben?" Everybody laughed and agreed with him. From then on, Big Ben became {#blank#}5{#/blank#}(it)name. And it also became it famous building of London. People all over the world write to Big Ben. They even send birthday presents-bottles of oil to help keep Big Ben running. Big Ben is not only a clock but also a dear friend of people.

    Have you ever heard of friendships among animals？ At a zoo in Germany, an unusual friendship developed {#blank#}1{#/blank#}a cat and a bear.

    No one is quite sure how the friendship first began. One day, some {#blank#}2{#/blank#}（worker） in the zoo noticed a black cat was in the bear's cage（笼子）, and the two animals were playing together peacefully. They were surprised {#blank#}3{#/blank#}well the small cat seemed to get along with the large bear. The bear keeper allowed the cat to stay with the bear. And later the pair and their unusual friendship {#blank#}4{#/blank#}（become） a hot topic at the zoo.

    After several years, a new cage {#blank#}5{#/blank#}（build） for the bear. However, the cat was still in the same cage, so it walked around {#blank#}6{#/blank#}（angry） and cried to be with the bear. The bear keeper finally took pity on the cat {#blank#}7{#/blank#} let it stay with the bear. The cat and the bear got {#blank#}8{#/blank#}（close） than before. They often sat together and shared meals in {#blank#}9{#/blank#} sun.

    Sometimes it may be natural for animals {#blank#}10{#/blank#}（have） their own ideas about who would make a good friend. These may surprise humans, who usually expect animals to form relationships with others of the same species.

    Once upon a time, there {#blank#}1{#/blank#}（live） a monkey in the forest. The monkey {#blank#}2{#/blank#}（climb） up a tree and looked down at the river every day.

    One day, the monkey saw a fisherman {#blank#}3{#/blank#}（throw） net（网） into the river. Then the fisherman caught fish.

    Two hours later, the fisherman {#blank#}4{#/blank#}（leave） to have lunch. The monkey climbed down from the tree. He planned {#blank#}5{#/blank#}（catch） fish like the fisherman did.

    The monkey was quite sure of himself because he {#blank#}6{#/blank#}good at imitating（模仿）. However, the net wound（缠住） itself around him as soon as he {#blank#}7{#/blank#}（touch） it. When he tried to get out, he {#blank#}8{#/blank#}（fall） into the river.

    The monkey should learn how {#blank#}9{#/blank#}（use） the net before touching it. But it was too late. At last, the monkey {#blank#}10{#/blank#}（die） in the river.