IF MODERN TECHNOLOGY DIDN'T EXIST, WE WILL NEVER HAVE THESE PRECIO...

40. - TÀI LIỆU UNIT 9 UNDERSEA WORLD
TÀI LIỆU UNIT 9 UNDERSEA WORLD

40. If modern technology didn't exist, we will never have these precious pictures

A. these

B. exist

C. will

D. modern technology

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