---_____ you ever _____ to Nanjing? ---Yes, I _____ there last year.

I       a new song last month.

 — What          in Yuyao Ningbo this time yesterday ?—I hear it was raining heavily and soon there was a big flood there.  

— I called you yesterday but no one answered.— Well, Maybe I         in the garden at that time.

 ---I don’t know what _____ if I do that. ---I think you ______ tell him the whole thing first.