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Alexander Graham Bell invented ___ telephone in 1876.
A. / B. a C. the D. one
Alexander Graham Bell invented ________ telephone in 1876.
A./ B.a C.the D.one
A．/ B．the C．one D. a
Alexander Graham Bell invented _____ telephone in 1876.
[ ]
A．the B．／
C．a D．one
Alexander Graham Bell invented ________ telephone in 1876．
A．a
B．the
C．one
D．\