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WhatmadeChinesepeopleproudandexcitedwasthatChinafristxxxchang'e-1launchedsuccessfulin2007,AhadbeenBhasbeenCwas为什么不是B?不是还对现在有影响么/?我们老师说对现在有影响的都要选完成式

题目详情
What made Chinese people proud and excited was that China frist xxxchang'e-1____ launched successful in 2007,
A had been
B has been
C was
为什么不是B?
不是还对现在有影响么/?我们老师说对现在有影响的都要选完成式
▼优质解答
答案和解析
has been 是现在时,用于一般现在时,had been 是过去时,用于一般过去时 ,例句中是过去已完成的事情,所以用had been