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Travelling in space has been made __________ possible with the development of science and technology.
A.thatB./C.itD.this
B

试题分析:考查被动语态。本题是一个被动语态的形式,其主动形式为:With the development of science and technology, we have made travelling in space possible.随着科技的发展,我们让太空旅游变得可能。
点评:被动语态要根据句子的意思来判断。本题要特别注意it用法。英语中的it是一个形式主语或者形式宾语,可以代替真正的主语和宾语。
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