—I apologize to you for my rudeness yesterday, Mary? —Never mind, and I think ______ of it.

 She asked if any of the passengers knew _____ about machines or at least how to drive a car. 

— How many classmates did you see there?— ________.

---- How do you find your new classmates?---Most of them are kind, but _______ is so good to me as Bruce.

 Susan was expecting her favorite singers，but to her disappointment,         appeared