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题库 / Prep2007E1-SC-158
The largest trade-book publisher in the United States has announced the creation of a new digital imprint division, under which it will publish about 20 purely digital works to be sold online as either electronic books or downloadable copies that can be printed upon purchase.
works to be sold online as either electronic books or
works to sell them online, either as electronic books or
works and it will sell them online as either electronic books or as
works, and selling them online as either electronic books or as
works, and it will sell them online either as electronic books or
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the construction 'to be sold' is passive voice. in fact, the passive voice is necessary here, because you don't know who is going to be selling the books.
(compare the analogous sentence 'there is still plenty of food left to be eaten').
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