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I wonder ______.

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I wonder ______.
A.if Dr Ma still works on the ORBIS plane
B.how much does the tallest man in the world weigh
C.when Audrey Hepburn had entered the film industry
D.that Armstrong was the first man to walk on the moon
答案A为什么不选C
I wonder ______.
A 是正确的.
句意是:我想知道马大夫是否仍在奥比斯飞机上工作.
选项C 的引导词是when ,不能跟完成时连用.如果改为 when Audrey Hepburn entered the film industry 就可以了.