To my disappointment every possible means —— to prevent air pollution butthe sky is stillnotcleaA.are being used B.have been usedC.has been usedD.had been used选什么 为什么

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To my disappointment every possible means —— to prevent air pollution butthe sky is stillnotcleaA.are being used B.have been usedC.has been usedD.had been used选什么 为什么
To my disappointment every possible means —— to prevent air pollution butthe sky is stillnotclea
A.are being used
B.have been used
C.has been used
D.had been used
选什么 为什么

To my disappointment every possible means —— to prevent air pollution butthe sky is stillnotcleaA.are being used B.have been usedC.has been usedD.had been used选什么 为什么
C means:方式 单复数同形,前面有every,所以这里是单数,又是强调过去动作产生的影响,所以用完成时

d 令我失望的是所有可能的方法被用来防止空气污染是stillnotclea香甜的天空

B...
虽然这里用every ...但其实指的是“所有的”的意思。。。所以用复数。。

是to my disappointed还是to my disappointment but to my disappointment no one dared to try such a tough, long journey.but to my disappointment 做什么成份,谢谢 I look forward to----(invite)to her birthday party,but to my disappointment,she didn't. you really make my disappointment to one's disappointment 造句 My life is full of disappointment,什么意识 英语翻译I eventually was able to save you from the separate existence of what is the use ....Oh,you have come as a disappointment,I understand ..my tears 英语,You ___ in your homework by now,but to my disappointment,you didn't.A.are supposed to hanYou ___ in your homework by now,but to my disappointment,you didn't.A.are supposed to handed.B.must have handed.C .are supposed to hand.D.must hand.帮忙 To our disappointment对还是To our disappoint对 The failure is a b____ disappointment to me. i made a call to my parents yesterday .To my disappointment ,___of them answered it.A either B none C neither Dnobody为何先C而不选B To my disappointment,____ in the students in that school don't go inTo my disappointment,all the students in that school don’t go in for sports.It means ____.A.none of the students in that school love sports B.not all the students in that school go To my disappointment every possible means —— to prevent air pollution butthe sky is stillnotcleaA.are being used B.have been usedC.has been usedD.had been used选什么 为什么 When I entered the theatre,to my disappointment,the first two rows were___________ by some noisy children.A.occupied B.seated C.sat 为什么?其他几个就不可以吗? Disappointment是什么意思 To our disappointment,the trip we had been lookTo our disappointment,the trip we had been looking forward to startted in the pouring rain.请翻译句子, tell me the meaning to his disappointment,the opinion he had stuck to proved wrong. To his disappointment,the opinion he had insisted on turning out to be wrong什么地方错