Excuse me. Could you tell me_____ get to the nearest post office—-Sorry ,I am new here

It is said that his carelessness ____ the terrible accident.

What are you doing,my dear?—I am ________ for my glasses. I remember I have put it on the bookshelf.[ ]

_____________　that I couldn’t be absorbed in the work.

s retired, but he still remember the happy time _______ with his students.