Q610
Modern exploration of the undersea world had its beginning in June 1943, when Jacques Cousteau . . . . . . . . his first dive with a revolutionary breathing device which he . . . . . . . . with Emile Gagnan, a French engineer.
A.
was making/has developed
B.
had made/will have developed
C.
has made/was developing
D.
will have made/develops
E.
made/had developed
AnswerAnswer: Option E
Solution
Answer: Option E
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