Scientists think that there has been _____（life） on the earth for hundreds of millions of years.为什么课本用单数?

英语翻译Do you think you will have your own robot?In some science fiction movies,people in the future have their own robots.These robots are just like humans.They help with the housework and do the most unpleasant jobs.Some scientists believe tha 英语翻译Do you think you will have your own robot?In some science fiction movies,people in the future have their own robots.These robots are just like humans.They help with the housework and do the most unpleasant jobs.Some scientists believe tha Scientists think that women kept the first man--raised animals. Scientists think animals can do something ___they___themsome food to eat. 英文翻译:各种音像制品的提货呵呵 tha goods of Audio and video products i think Scientists think that there has been life on Earth for millions of years. Most of the scientists think that Mars is a ______ planet.(life) Scientists think that the continents___always where they ___today.A.weren't:are B.aren't:are mary computer scientists are now thinking of m( ) the computer (think) like a man. think,animals and plants,every,earth,on,the,die out,year,scientists(连词成句) Scientists think that greenhouse gas emissions have led to c_____ changes in some places Some scientists think there is water on Mars.(改为否定句） many compuer scientists ______ making the compuerthink like people.A to think B think of c. thinks of d thinking many compuer scientists ______ making the compuer thinj like people.写错了应该是“think”A to think B think of c.thinks of D thinking many compuer scientists ______ making the compuerthink like people.A to think B think of c.thinks of D thinking Complete the following sentences according to the Chinese given.1.Long ago people thought that the moon___(是一个大盘子)2.I hope that I___(成为一个宇航员)3.Scientists say that people___(将来可以在月球生活)4.Scientists belive tha Scientists think there has been life on Earth for ______ years.中间填millions of 还是2 million 完形填空Scientists think that most animals can't see colors.有做到的吗,帮个忙!