Scientists have come up with lots of ideas to explain the end of the dinosaurs 同义句

scientists have many the ories about how the universe ---into beinga came b was coming chad come d would come Scientists have many theoyies about how the universe_____into being.A.came B.was coming c.had come D.would come Scientists have many theories about how the universe ______into being.括号里填had come 还是came.为什么? Scientists have come up with lots of ideas to explain the end of the dinosaurs 同义句 英语翻译Scientists have ways to predict when tornadoes will come.Then people can get out of their way. Scientists have many theories about how the universe into being.A. came B. was coming C. had come D. would come Scientists have many theories about how the universe _______ into being 为什么此处要用was coming 而不用would come最好具体一些 英语翻译Scientists have ever found that a dolphin can make a shyeel come out of its hole with a dead fish . The scientists believe ( )they have devoten themselves to ( ）sure to come true.a.that all ,are b.what,is 请详解 have come have come Scientists have given many ideas for ______space. Scientists have many theories about how the universe _______ into being .为什么选B?Scientists have many theories about how the universe _______ into being .A.came B.was coming C.had come D.would come是因为宇宙是从很久以前开 Scientists have many theories about how the universe ____into bing.A:came B:was coming C:had come D:would come 为什么啊,D为什么就不可以呢! Scientists have many theories about how the universe _______ into beingA.came B.was coming C.had come D.would come请详细解释下BCD为什么不选? scientists have many theories about how the universe___into being.A.came B.was comingscientists have many theories about how the universe___into being.A.cameB.was comingC.had comeD.would come为什么不用comes不是客观事实嘛?、 With the population explosion,scientists will have to ____ new.11.With the population explosion,scientists will have to ____ new methods of increasing the world’s food supply.A.lead to B.carry out C.come up with D.stick to 12.The police are _____ t A. Putting direct speech into indirect speech:21. Putting direct speech into indirect speech:(1) Scientists say, “The earth moves round the sun.” (2) The teacher asked me, “Have you finished your work yet?:” (3) “Why didn’t you come