SajjadAhmad wrote:
Scientists have recently analyzed glass spherules that were created by the meteor impact near the Yucatan Peninsula in Mexicoand have concluded that the infamous meteor arrived 300,000 years too early to have killed the dinosaurs.
(A) and have concluded that the infamous meteor arrived 300,000 years too early to have killed the dinosaurs.
(B) but have concluded that the infamous meteor arrived 300,000 years too early to have killed the dinosaurs.
(C) having concluded that the infamous meteor
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