If NASA's Cassini mission successfully completes its next phase ? orbiting Saturn many times over a several-year period ? its stunning photos of and data concerning Saturn have been and will continue to enthrall astronomers throughout the world.
A. have been and will continue to enthrall
B. have and will continue to enthrall
C. will continue to enthrall, as they already did,
D. will continue to enthrall, as they have already,
E. will continue to enthrall
A. have been and will continue to enthrall
B. have and will continue to enthrall
C. will continue to enthrall, as they already did,
D. will continue to enthrall, as they have already,
E. will continue to enthrall
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