I would like to provide more information for you today but I am ..... of answers until the engineers get back to me with a reason for the failure and a possible solution.

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I would like to provide more information for you today but I am ..... of answers until the engineers get back to me with a reason for the failure and a possible solution. (*) in (*) on (*) out (*) under

This is a companion discussion topic for the original entry at https://english.best/questions/17352,i-would-like-to-provide-more-information-for-you-today-but-i-am-___-of-answers-until-the-engineers-get-back-to-me-with-a-reason-for-the-failure-and-a-possible-solution/