A：Hello，Billy．I {#blank#}1{#/blank#}(not see)you for a long time．

B：Yes，I {#blank#}2{#/blank#}(be)very busy recently．

A：Really? Tell me what you {#blank#}3{#/blank#} (do)since we last {#blank#}4{#/blank#}(see)each other．

B：Well，I {#blank#}5{#/blank#}(get)my degree(学位)last month and then I {#blank#}6{#/blank#}(move)

 house．

A：When  {#blank#}7{#/blank#}(you／move)?

B：Last week，but I {#blank#}8{#/blank#}(not clean)everything yet

A：I {#blank#}9{#/blank#}(call)you on Tuesday but there {#blank#}10{#/blank#}(be)no answer．

B：I {#blank#}11{#/blank#}(be)busy at my new house then．

A：Never mind．I only {#blank#}12{#/blank#}(want)to invite you to a party next week at my house．

B：Great! Thank you．

    I was born in a small river. When I {#blank#}1{#/blank#} young, the river was my home. I didn't know my {#blank#}2{#/blank#} (parent),  {#blank#}3{#/blank#} I had {#blank#}4{#/blank#} (hundred) of brothers and sisters. I swam(游)and played all day with {#blank#}5{#/blank#} . At that time, I didn't look like my parents. I had no legs, but I had a long tail(尾巴). So I {#blank#}6{#/blank#} (look) like a fish.

    Then {#blank#}7{#/blank#} (I) tail got shorter than before. And now I know l {#blank#}8{#/blank#} four legs and a very short tail. I know I'm going to {#blank#}9{#/blank#} (like) my parents. Then I'm going to eat lots of bad {#blank#}10{#/blank#} (insect). Do you know what I am?