In both of these sentences, "up" is used as a preposition. The phrases "up the ladder" and "up the hill" show that it's a preposition.
However, "up" is used as an adverb in this sentence.
Joe looked up at the tower.
1. They climb up the hill to the tower of London.
2. He is climbing up the ladder.
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Is 'up' an adverb or a preposition?
1 answer