the number of Siberian tigers (东北虎) has gone from as many as

the number of Siberian tigers (东北虎) has gone from as many as 300 to__48___ twenty-two somewhere
第48题选哪一项,为什么?
Ⅱ．完形填空：阅读下面短文,选出最佳选项.(每小题1分.
Save the Wild Tiger When people think of tigers,they think:strong and dangerous.But now,the big animal is calling for our help.There were once eight kinds of 46 in the world,but three died out during the 20th century.In the last 70 years,the 47 of Siberian tigers (东北虎) has gone from as many as 300 to 48 22 somewhere.The Siberian tiger has been 49 dying out completely.If the government doesn't make any efforts,it's quite 50 that there will be no more Siberian tigers in China in ten to twenty years.In order to double the number of wild tigers in the 51 ten years,the World
Wildlife Fund (世界自然基金会) has started a program recently.It 52 save wild tigers and put an end to tiger hunting and killing.China,together with twelve other 53 ,has joined in.Wild animals,such as red deer and wild pigs,are the main 54 of the tigers.The hunting of these animals is the greatest threat (威胁) to tigers.So the most important thing is 55 the animals that tigers eat.To protect the wild tigers,we need to call on more people to stop eating and hunting wild animals.
46.A.pigs B.tigers C.deer
47.A.name B.kind C.number
48.A.less than B.more than C.bigger than
49.A.in need of B.in danger of C.in front of
50.A.possible B.impossible C.necessary
51.A.last B.next C.past
52.A.aims to B.used to C.refuses to
53.A.cities B.provinces C.countries
54.A.friends B.food C.members
55.A.to sell B.to kill C.to save

A 知道你的疑惑是：number 应该比大小,这里是具体数字22,不可能选C,根据句意不能选B
再问： 为什么不是 fewer　　？？
再答： 具体数字前不用fewer