it is the earth that is traveling all the time.里面的that引导句子是什么句呢?为什么用is traveling呢?能用travel或者travels吗?

what do you think___makes the earth go aroundis it that it is that为什么? 翻译：It is the name of the land masses that the Earth is divided into. 英语翻译 In fact it is the earth that is traveling around me all the time. she said to the children ,it is well-know that the earth moves round the sun. It is a truth that the Earth moves around the Sun是什么从句 it is the tears of the earth that keep here smiles in It is the tears of the earth that keep here smiles in bloom. columbus proved that the earth is round 英语翻译it is __ -___ that the earth ____ ____the sun __is well known to all,the earth is round填as or it or that It is good to wake up to find that you are still on the earth It ----- to everyone that the earth goes around the sunA.knows B.is known C.knowing D.is know It ----- to everyone that the earth goes around the sunA.knows B.is known C.knowing D.is know 分析it is the tears of the earth that keep her smiles in bloom的语法 that后面的是?it is the tears of the earth《《 that keep her smiles in bloom》》 翻译句子：It will be seen that my reason for thinking that the earth is round are rather prdcarous The fact that the earth is round is true It is known to all that the earth is round.这句话属于什么句型?It is known to all that the earth is round.这句话属于什么句型?为什么? 英文句子 The net effect is that the Earth is .The net effect is that the Earth is warming up more than it would have without our presence.谢绝机译!