________ have you learned to play the piano— ________ five years ago.

It’s Mary’s own fault if she feels _____ at the party — she makes noeffort to be friendly to people．

As far as I am concerned,education is about learning and the more you learn, ______.

When I was young, I was told that I ______ play with matches

Lee is new in Nanchang. Maybe he needs a _____forsightseeing.