—Yes, but I don't think it is worth _______.

     Yesterday my sister and I went{#blank#}1{#/blank#}(buy)something for her birthday．She didn't really know what{#blank#}2{#/blank#}(get)but she seemed{#blank#}3{#/blank#}(like)the idea of a pet，so we went to the nearest pet shop．She started {#blank#}4{#/blank#}(look)around at an the animals．The man in the shop advised her {#blank#}5{#/blank#}(choose)the rabbits，but when she saw some puppies(小狗) {#blank#}6{#/blank#}(play)in the box，she said she would like{#blank#}7{#/blank#}(have)one of them．I didn't know if we had enough money{#blank#}8{#/blank#}(buy)one and I hoped my mother would want us{#blank#}9{#/blank#}(have)a dog in the house，but my sister promised{#blank#}10{#/blank#}(look after)it well and we had enough money，so we bought a little brown dog.

—No, sometimes.

Mars is very {#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#} the earth.