(1B) doesn't sound right. "so as to" rather implies that the outcome of an action is predictable, which is not the case here. (2B) is awkwardly expressed.
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lucas21c1. Then, how about the following sentences? Do they still sound unnatural?(1) He tried hard to pass the bar exam.(2) She gets up early in the morning so as to go her company.2. Does "He hired a lawyer in order to divorce his wife" also sound awkward?1.1 is fine.
lucas21cThen, how about "He hired a person in order to make the lawn of his house mown?"No, "make the lawn of his house mown" is horrible.