根据句意,用a,an the 填空,需要冠词的地方用/

根据句意,用a,an the 填空,需要冠词的地方用/
It is so hot today,Let's have( )siwm now
Greens are going to the park to walk.Why don't you go for walk with them
What( )fine weather we have these days!
We have two English classes on( ) Wednesday
_What is ( )most useful invention in the 20th century
Hmm let see
The doctor asked me to take the medicine three times( )day
I think it is( )very beautiful song.but I can't remember（ ）name of it
_What would you like for( )breakfast
_Two pieces of bread and( )glass of milk please
Mrs Lin lived on ( )eighth floor.We are neighbors