Not only ______ people to send words, music, and codes to any part of the world, it can also be used to communicate far into space. 

Câu hỏi :

Not only ______ people to send words, music, and codes to any part of the world, it can also be used to communicate far into space. 

A. enabled by radio

B. radio enables

C. does radio enable

D. radio has enabled

* Đáp án

C

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