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John has never been ______ a plane.A．abroadB．aboveC．absorbD．aboard
John has never been ______ a plane.
A．abroad
B．above
C．absorb
D．aboard
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题目内容
（请给出正确答案）
如果结果不匹配，请 联系老师 获取答案
题目内容
（请给出正确答案）
John has never been ______ a plane.
A．abroad
B．above
C．absorb
D．aboard
如果结果不匹配，请 联系老师 获取答案
更多“John has never been ______ a p…”相关的问题
A.had become
B.became
C.has been
D.had been
A book to be published in Britain this week, The End of Science, argues persuasively that this is the case. Its author, John Horgan, is a senior writer for Scientific American magazine, who has interviewed many of today's leading scientists and science philosophers. The shock of realizing that science might be over came to him, he says, when he was talking to Oxford mathematician and physicist Sir Roger Penrose.
The End of Science provoked a wave of denunciation in the United States last year. "The reaction has been one of complete shock and disbelief, "Mr. Horgan says.
The real question is whether any remaining unsolved problems, of which there are plenty, lend themselves to universal solutions. If they do not, then the focus of scientific discovery is already narrowing. Since the triumphs of the 1960s—the genetic code, plate tectonics, and the microwave background radiation that went a long way towards proving the Big Bang—genuine scientific revolutions have been scarce. More scientists are now alive, spending more money on research, that ever. Yet most of the great discoveries of the 19th and 20th centuries were made before the appearance of state sponsorship, when the scientific enterprise was a fraction of its present size.
Were the scientists who made these discoveries brighter than today's？ That seems unlikely. A far more reasonable explanation is that fundamental science has already entered a period of diminished returns. "Look, don't get me wrong," says Mr Horgan. "There are lots of important things still to study, and applied science and engineering can go on for ever. I hope we get a cure for cancer, and for mental disease, though there are few real signs of progress."
The sentence "most of the best things have already been located" could mean______.
A．most of the best things have already been changed
B．most of the best things remain to be changed
C．there have never been so many best things waiting to be discovered
D．most secrets of the world have already been discovered
It is during his spare time ______ John has been studying a course in French．
A．when
B．that
C．which
D．what
Never before in China ______ for the farmers.
A．has so much been done
B．have so much been done
C．has been done so much
D．so much has been done
A．Ⅰ and Ⅱ
B．Ⅰ
C．Ⅰ and Ⅳ
D．Ⅰ, Ⅱ and Ⅳ
According to the author, Argentina's financial recovery has been blocked because______.
A．companies never pay the tax
B．the banks cannot offer enough financial help
C．they do not have enough foreign investment
D．companies' increased caution for the crisis
The old lady has never ______the house since she moved in.
A. been away
B. left
C. lived
D. stayed at
______ during the war, the airport has never been used again.
A．Has damaged
B．Having damaged
C．Has been damaged
D．Having been damaged
From the fifth paragraph we can infer that
A．the author has never been afraid of changes in his life
B．the author used to believe that changes happened automaticallv
C．the author is still not satisfied with his present situation
D．the author and experienced a period of frustration of his life
