Read the following article and select the best answer. Article: It's about the size of a small slim upside down goat, if you can imagine such a thing.The sloth really is not only one of the laziest, but one of the strangest of the strangest of mammals.It spends most of its life asleep.But even when it's awake, it only moves very slowly. There are two main kinds defined by the number of toes that they have on their font legs.It's the three-toed which has really slothful habits, and the one that interests me most.You're not likely to have seen it in zoos, for unlike the two-toed which will rat all kinds of vegetables and fruits,, the three-toed is really picky and will only accept leaves and fruits of a few particular kinds, which few zoos can supply.And in any case, it doesn't make an exactly fascinating exhibit, since it spends most of its tile sleeping. When the skins and skeletons of this extraordinary beast reaches Europe, artists given the task of illustrating the species in natural history books, showed it standing upright on its four thin legs, even though thee hooks on its feet and the fur on its body all pointed very obviously in what you might call the wrong way.After all, the artists must have said to themselves, it would be too ridiculous to show it as animal that spent all its life upside down. Sloths are only capable of a faint wheeze and occasional whistle.These sounds are probably only made to deter a meat-eater like a lion, and certainly not to communicate with one another, for sloths are virtually stone deaf.It's said that an enthusiastic zoologist investigating the hearing ability of sloths fired his gun close to _ .It slowly raised its head, blinked at the scientist, and then went back to sleep again. Question: The experiment of an enthusiastic zoologist shows that _ . - how slow a sloth can be - sloths have very poor hearing - sloths are sleepy all the time - sloths are not easily disturbed
sloths have very poor hearing

Read the following article and select the best answer. Article: What would you think if someone suggested knocking down St Paul's cathedral to widen the road,or pulling down Big Ben to make way for a car park? It'd be ridiculous,right? But when it comes to devastation of the natural world,we aren't so easily shocked.But we should be...or we'll be in a lot of trouble! _ Ancient forests are destroyed.Wetlands are becoming dry.Woodland is disappearing,all in the name of progress.This is bad in itself,but it's devastating for biodiversity. Biodiversity refers to the variety of plants,animals and other living things which are all inter-connected.The ecological services provided by biodiversity are vital to everyday life.The air we breathe is a product of photosynthesis by green plants.In fact,all life on earth exists thanks to the benefit of biodiversity.More than 90 percent of the calories consumed by people worldwide are produced from 80 plant species.And 30 percent of medicines are developed from plants and animals.Maintaining a wide diversity of species in each ecosystem is necessary to preserve all living things. The loss of biodiversity could be devastating."It is wrong to think that biodiversity can be reduced indefinitely without threatening humans," said Harvard University biologist Edward O Wilson,known as "the father of biodiversity".He warned,"We are about to reach a critical point beyond which biodiversity loss will be unavoidable." But what can we do? The problem is that the concept of biodiversity is so vague.People might care about giant pandas,but it is much harder to excite them about the fate of tiny sea creatures which are being boiled to death in the cooling systems of power stations along coastlines.The Guardian newspaper is trying to help.It has started the Biodiversity 100 campaign to try to convince governments around the world to take action to deal with the widespread concerns about biodiversity.This includes persuading the UK government to create a series of marine reserves to change the decrease in the sea-life caused by industrial... Question: What does the author think of pulling down Big Ben to make way for a car park? - Unreasonable. - Necessary. - Difficult. - Urgent.
Unreasonable.

*Question*
Read the following article and select the best answer. Article: One day an out of work mimic is visiting the zoo and attempts to earn some money as a street performer. As soon as he starts to draw the crowd,a zoo keeper grabs him and drags him into his office. The zoo keeper explains to the mimic that the zoo's most popular attraction,a gorilla ,has died suddenly and the keeper fears that attendance at the zoo will fall off. He offers the mimic a job to dress up as the gorilla until they can get another one. The mimic accepts. So the next morning the mimic puts on the gorilla suit and enters the cage before the crowd comes. He discovers that it's a great job. He can sleep all he wants,play and make fun of people and he draws bigger crowds than he ever did as a mimic. However,eventually the crowds tire of him and he tires of just swinging on wires. He begins to notice that the people are paying more attention to the lion in the cage next to his. Not wanting to lose the attention of his audience,he climbs to the top of his cage,crawls across a partition ,and dangles from the top to the lion's cage. Of course,this makes the lion very angry,but the crowd loves it. At the end of the day the zoo keeper comes and gives the mimic a raise for being such a good attraction. Well,this goes on for some time-the mimic keeps taunting the lion,the crowds grow larger,and his salary keeps going up. Then one terrible day when he is dangling over the angry lion he slips and falls. The mimic is terrified. The lion gathers itself and prepares to attack. The mimic is so scared that he begins to run round and round the cage with the lion close behind. Finally,the mimic starts screaming and yelling,"Help me,help me!"But the lion is quick and attacks. The mimic soon finds himself flat on his back looking up at the angry lion and the lion says,"Shut up,you idiot!Do you want to get us both fired?" Question: The zoo keeper offers the mimic a job to act as the gorilla because _ . - it is more expensive to hire a real gorilla - the real gorilla died but the keeper does not want to lose its visitors - he likes the mimic's performance - he wants to help the mimic who is out of work
**Answer**
the real gorilla died but the keeper does not want to lose its visitors