Historically, _____ main material for making tables has been wood, but _____ metal and stone have also been used.
A.the; the | B.the; / | C./; the | D./; / |
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Historically, _____ main material for making tables has been wood, but _____ metal and stone have also been used.
A.the; the | B.the; / | C./; the | D./; / |