We should know that we can only reach the top if we are ready to ________ and learn from failure.[ ]

If you want to improve your oral English, you’ll first have to _______yourself of those shortcomings.

下列加点字意义和用法相同的一组是（ ）

It’salready10o’clock. Iwonder howit _________ that she was two hours late on such a short trip.[ ]

It has been reported that some government leaders______ their authority and position to get illegal profits for themselves.