You like to go {#blank#}1{#/blank#}. But you hate to carry heavy shopping {#blank#}2{#/blank#}. Then Gita is {#blank#}3{#/blank#}  you need. The robot can {#blank#}4{#/blank#} your shopping bags from the store straight {#blank#}5{#/blank#} your door. {#blank#}6{#/blank#} can hold about 18 kg of shopping. A Boston company made Gita. The company says that in the {#blank#}7{#/blank#}, Gita may be {#blank#}8{#/blank#} to go into stores {#blank#}9{#/blank#}, {#blank#}10{#/blank#} you wait in the car for it to return.

    Hunting was once popular in the USA. Long ago the wild was filled with rabbits, bears and many other animals. Hunting provided people with a lot of meat. Also some expressions Americans use today{#blank#}1{#/blank#}hunting.

    One of the expressions is "to bark(吠叫) up the wrong tree". It comes from hunting raccoons(浣熊). The raccoon is a very clever animal. It{#blank#}2{#/blank#}during the day and comes out at night. Hunters used dogs to chase(追赶) the animals. The raccoon used many tricks to escape the dogs. Often it would travel through the river for a while to hide its{#blank#}3{#/blank#}from the dogs. It would also climb into a tree to rest, leaving the dogs barking below it. The hunter found the tree by walking to the sound of the dogs. He used a light to try to see the raccoon and then caught it. Sometimes, however, the raccoon was not in the tree. It had jumped to{#blank#}4{#/blank#}tree and escaped, leaving the dogs "barking up the wrong tree". The expression now means "to be mistaken" or "to look for something in the wrong place".