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题库 / Prep2007E2-SC-90
Diesel engines burn as much as 30 percent less fuel than gasoline engines of comparable size, as well as emitting far less carbon dioxide gas and far fewer of the other gases that have been implicated in global warming.
of comparable size, as well as emitting far less carbon dioxide gas and far fewer of the other gases that have
of comparable size, as well as emit far less carbon dioxide gas and far fewer of the other gases having
of comparable size, and also they emit far fewer carbon dioxide and other gases that have
that have a comparable size, and also they emit far less carbon dioxide gas and other gases that have
that have a comparable size, as well as emitting far fewer carbon dioxide and other gases having
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so, here's the thing: once you have done something... well, that's true forever.
e.g., if you have seen a certain movie, or if you have smoked cigarettes, or if you have done just about anything... then you never STOP being "someone who has seen the movie", or "someone who has smoked cigarettes", etc.
these descriptions remain true in perpetuity. forever and ever and ever amen.
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