Long-distance travel for humans primarily relied on animal power until 1829, when the steam locomotive was invented by Richard Trevithick, who had found a way to provide sufficient traction for movement and led to the building of locomotive-driven passenger trains .
a. who had found a way to provide sufficient traction for movement and led to the building of locomotive-driven passenger trains
b. who found a way to provide sufficient traction for movement and led to the building of locomotive-driven passenger trains
c. who, after finding a way to provide sufficient traction for movement, led to the building of locomotive-driven passenger trains
d. whose discovery of a way to provide sufficient traction for movement led to the building of locomotive-driven passenger trains
e. who had led to the building of locomotive-driven passenger trains by providing sufficient traction for movement
[spoiler]Source : Kaplan Test 1, OA later[/spoiler]
a. who had found a way to provide sufficient traction for movement and led to the building of locomotive-driven passenger trains
b. who found a way to provide sufficient traction for movement and led to the building of locomotive-driven passenger trains
c. who, after finding a way to provide sufficient traction for movement, led to the building of locomotive-driven passenger trains
d. whose discovery of a way to provide sufficient traction for movement led to the building of locomotive-driven passenger trains
e. who had led to the building of locomotive-driven passenger trains by providing sufficient traction for movement
[spoiler]Source : Kaplan Test 1, OA later[/spoiler]
I am on a break !!
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