If the tracks that make up the New York City subway were laid end to end, they will have been stretching from New York to Chicago.

Question

Choose 1 answer:
Choose 1 answer:
(Choice A) NO CHANGE
A
NO CHANGE
(Choice B) stretch from
B
stretch from
(Choice C) stretching from
C
stretching from
(Choice D) would stretch from
D
would stretch from

Answer 1

The best choice to maintain the correct tense and meaning of the sentence is:

(Choice D) would stretch from

Therefore, the complete sentence would read: "If the tracks that make up the New York City subway were laid end to end, they would stretch from New York to Chicago."