Whoever invented _______wheel is believed to have made ______most useful invention in _______history.
A.a; the; / | B.the; the; / | C.the; a; / | D.a; a; the |
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Whoever invented _______wheel is believed to have made ______most useful invention in _______history.
A.a; the; / | B.the; the; / | C.the; a; / | D.a; a; the |