-Are you familiar _______ the music? -Yes. The music is familiar __________me,but I can`t remember when and where I heard.

Progress so far has been very good．We are,    __, confident that the work will be completed as expected．

 --What should I prepare for him?--________ anything. He is not particular with food.

 If you lose a customer, regret it _____ excuse it, or you will lose him for ever.

---- I was riding along the street and all of a sudden, a car cut in and knocked me down. ---- You can never be _______ careful in the street.