The computers made by our company sell best, but several years ago no one could have imagined the role in the markets that they ________.
A.were playing | B.were to play | C.had played | D.played |
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The computers made by our company sell best, but several years ago no one could have imagined the role in the markets that they ________.
A.were playing | B.were to play | C.had played | D.played |