ziyuen wrote:
Tiny quantities of more than thirty rare gases, most of them industrial by-products, threatento warm the Earth's atmosphere even more rapidly than carbon dioxide during the next fifty years .
(A) to warm the Earth's atmosphere even more rapidly than carbon dioxide during the next fifty years
(B) to warm the Earth's atmosphere evenMORE rapidly over the next fifty yearsTHAN carbon dioxidewill
(C) during the next fifty years to warm the Earth's atmosphere even more rapidly than carbon dioxide
(D)
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