How do we say if someone falls from a train ?
Do we say He slipped OFF the train . or He slipped from the train ?
Do we say He slipped OFF the train . or He slipped from the train ?
They have slightly different connotations -- "he slipped OFF the train" more directly suggests that he fell, whereas "he slipped FROM the train" has slightly more of an implication that he exited the train in a discreet manner -- but that's *really* splitting hairs; grammatically, either version is acceptable.
Going by ear, I could see the GMAT having a slight preference for "from," but it's an awfully subtle distinction to be the sole basis for a right answer. If a real GMAT question contained both options (in different answer choices), the correct answer would very likely be based on a separate factor.
