They have done all __ stop the sisease from getting around.A.what they can B.they can to C.that they can D.what they can to

They have done all they could to help him.为什么是to help? All-----they have done is good for us A What B which C why D / All ( )they have done is good for me .填that 还是what i am__to my parents for all that they have done for me应该填哪个单词 Could _ have been _ who helped Sunny get her work done?A.they ,it B.they ,them C.it,them D.it,they 答案是 D为啥? They have done all __ stop the sisease from getting around.A.what they can B.they can to C.that they can D.what they can to 请问怎样填请问怎样填 All the work _ (do)they felt satisfied.has been done但是给出的答案是having been done为什么呢？ i don't know _ good they could have done.A.howB.that C.what D.which It is well known to all,they have done colour printing in China since the 12th century修改病句 The teacher is satisfied with _ the students have done in the experiments A.that B all what C which D all that have done quit的意思 They all think that girl has done quite a bit of reading.have done quit的意思They all think that girl has done quite a bit of reading.他们都认为这个女孩一定读了不少书.那么has done quite 是不是一定的 what have they done to you 歌词 they couldn't have done better是什么意思 They have done a good job. ..“They have done a good job.” “ .”　A) So they have done B) So they haveC) So have they D) So is it We all have done与we have all done哪个对 英语翻译I'm not sure what others would have done had they known that they wouldn't be here for the tomorrow that we all take for granted. 英语翻译The millions of calculations involved,had they been done by bad,would have lost all pratical value by the time they finished. where have all they flowers