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Look over

Posted by Mm169 on May 26, 2003

Here are two sentences, which include the phrase "look over". I wonder if the word "over" is a preposition or an adverb. Would you give me a hand?

1. Look it over carefully so that you may identify it.

2. Will you sort of look over it, sir, if you think it's worth while?

Can the phrase "look over" be used both ways?

Thank you very much.