Please excuse me _______ your letter by mistake.
________ it is to have a cold drink on such a hot day!
Many of them turned a deaf ear to his advice, ________ they knew it to be valuable.
While ________ the dog, you should take care not to ________. Otherwise, it may be dangerous to strangers.
It’s the third time ________ late for School this week.
Money plays ________ important role in the material world. But expecting ________ money to give happiness may be missing the meaning of life.