By the end of the nineteenth century, five of the Western European states had developed a railroad system, but only one in the East.
(A) only one in the East
(B) only one eastern state
(C) in the East there was only one state
(D) in the East only one state did
(E) only one in the East had
OA: E
Please explain the rules regarding the answer choice E and A
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Had vs no had
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Suboptimal SC.neeti2711 wrote:By the end of the nineteenth century, five of the Western European states had developed a railroad system, but only one in the East.
(A) only one in the East
(B) only one eastern state
(C) in the East there was only one state
(D) in the East only one state did
(E) only one in the East had
OA: E
Please explain the rules regarding the answer choice E and A
What is the source?
