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题库 / Prep2007E2-SC-74
Thirteen states from all regions of the country announced a plan to impose new controls on pollution from truck and bus engines in that they will jointly adopt emission limits that would be far stricter than the federal rules.
to impose new controls on pollution from truck and bus engines in that they will jointly adopt
to impose new controls on truck and bus engines' pollution by the joint adoption of
to impose new controls on pollution from truck and bus engines by jointly adopting
for imposing new controls on pollution from truck and bus engines, and jointly adopting
for imposing new controls on truck and bus engine pollution in the joint adoption of
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the joint adoption 没有主语，无法与主句形成关联，by doing暗示其主语是主句主语
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