Astronauts have already been to the moon.改成疑问句:Where have astronauts( )been选填already或yet

astronauts Astronauts have already been to the moon.改成疑问句:Where have astronauts( )been选填already或yet 高中英语的完成句子-In space the astronauts will have to face the circumstances_on the earth . Now several countries have sent astronauts into space.中文意思是什么 Have the scientists_____ spoken to the astronauts?A.already B.just C.ever D.yet 现在完成时 同义句区别I have never visited the USA I never visit the USA 有什么区别 Astronauts have already been to the moon.Astronauts have been to the moon.有什么区别 The astronauts have _____ to the space station twiceA.gone B.been C.went D.be 说明原因 Put the words in the correct place in each sentence.例句：Astronauts have been to the moon.(already) Astronauts have already been to the moon. 1.They haven't been to Mars.(yet) 2.Many astronauts have visited the space station.(already) 3.The space Losts of astronauts ___to the space station . They found it very interesting.答案：A：have been B:have gone___中选一个答案 Lots of astronauts ________(has/have) been to the space station .They found it very interesting.why?请说明，has和have有什么区别？ More Chinese astronauts _____________ into space with the development of science and technology.A) have been sent B) will be sent C) have sent D) will send Space travel is dangerous and the astronauts in space have to ______ many discomforts (不适) in their rockets.选项:a、disturb b、 tremble c、 endure d、 operate Put the words in the correct place in each sentence.例：Astronauts have been to the the moon(already)Astronauts have already been to the the moon.1.They haven't been to Mars.(yet)2.Many asteonauts have visited the space station.(already)3.The space Whats an astronauts favorite meal can you understand astronauts' jokes 仿照例句,将下列各句变成疑问句并作出肯定与否定得回答.He is a worker.Is he a worker?1.Englieh is very important.2.He has a lot of books.3.You are reading today's newspaper.4.We shall go now.5.He must come early.6.They have alre 非谓语动词语法..快.~~1.generally speaking ,when_____(take)according to the directions,the drug has no side effect.2.______,we planned to go swimming. ________,so we planned to have a swim.(be hot)3.it's my fault.i remmenber______the door alre 请会英语的帮我看下这段文字有哪些地方是错的I thought I could live in Ur worldIn my heart,you are all请帮我翻译出来并指出错误的地方But Last,My idea is wrongYou never know how much I love youJust because you have alre