2.—Bird flu（禽流感）is still very serious in some countries.—Yes.Something must __________（do） to stop it from spreading.done .但我不明白为什么要用be done,这是什么时态?为什么不能用be doing

2.—Bird flu（禽流感）is still very serious in some countries.—Yes.Something must __________（do） to stop it from spreading.done .但我不明白为什么要用be done,这是什么时态?为什么不能用be doing Chickens can get bird flu(禽流感） from the feces of the p_____ birds p处填一个英语单词? 禽流感,怎么翻译,在new scientist 站点上看到bird flu,就是禽流感的意思吗? H7N9禽流感病例为什么用“H7N9 bird flu case” Bird 不是鸟的意思吗? 禽流感为什么被译成bird flu?bird flu直译为鸟流感,显然与“禽”是有区别的. what is Bird Flu in Chinese? 致命接触 美国禽流感 FATAL CONTACT BIRD FLU IN AMERICA怎么样 近年来我国很多地方出现了禽流感（bird flu ）,给人们的生活带来了诸多不便.请根据本单元所学内容,说一近年来我国很多地方出现了禽流感（bird flu 给人们的生活带来了诸多不便。请根据本 根据所给的汉语完成下列句子我们政府已经采取了措施防止禽流感再次发生.Our government______________ the bird flu ______________他离开家乡快十年了He _______________ his hometown for nearly ten yearsIt's __________ Bird flu中文翻译 It is reported that the bird flu has been brought under control in this area =The bird flu is____ 初二英语填空题一道根据句意及首字母填空Bird flu is as t（ ）as SARS.Maybe it is even w（ ）than SARS at+the+moment+it's+very+hard+for+people+to+get+bird+flu是什么意思 The H7N9 bird flu is a disease ______ can be very dangerous.A./ B.who C.what D.which （请说明理由） —What are you searching the Internet for?.— I’m trying to find out ________ .A.which is the way to the nearest park.B.what’s the difference between H1N1 and Bird FLU.C.what can we do for people in trouble.D.where will we meet this Saturday. The bird flu is beleved 空 by viruses that like to reproduce inside the chicken‘s cells.A causing B being caused C to be caused D to have caused 请英语高手帮我翻译一下这篇短文（采纳后15分）4月30日12：30截止The bird flu is a disease that can affect all species of birds but can, less commonly, infect humans. Although there were many reported cases of human bird flu ye Bird Flu can spread easily —a____birds根据句意及首字提示补全单词