Greatly influenced by the Protestant missionary Samuel Kirkland, the Oneida was the only one of the five-nation Iroquois League who sided with the colonists during the American Revolution.
was the only one of the five-nation Iroquois League who sided
was alone of the five-nation Iroquois League when they sided
alone among the five nations of the Iroquois League sided
were the only ones out of the five nations of the Iroquois League in siding
only of the five-nation Iroquois League had sided
2. in Choice B, "they" has no clear referent, because "was" already signifies "the Oneida" as a singular noun that is not consistent with "they", and because "Iroquois" actually acts as an adjective(Pronoun can only refer noun and noun phrase).
3. if someone "did X in doing Y", this means that X was something that happened during the process of Y.
e.g.,
Two members of the team were injured in training for the upcoming game.
登录 或 注册 后可以参加讨论