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Modern planetary science has a detailed understanding of the conditions necessary for a planet to develop life, but scientists are still unable to determine whether a given specific planet meeting all these conditions does develop life.
A. does develop
B. is developing
C. might have developed
D. has developed
E. could be developing
OA D
Source: Magoosh
A. does develop
B. is developing
C. might have developed
D. has developed
E. could be developing
OA D
Source: Magoosh












