last or in

I would say number 2. Number 1 is just wrong.

If you're referring to last year's summer, then yes, "last summer", as Erin says. If it's another (past) summer, then "in the summer of ..."

if i want to say especially "last summer" that i would choose number 2.

but you can say "number 1" too. To me, number 2 is better than 1

I was in Miami this summer.

I was in Miami last summer.

I was in Miami in the summer.

I was in Miami the summer before last.

I was in Miami in the summertime.

I was in Miami the summer of 1994.

I was in Miami the summer the beaches were all closed because of shark-infested waters.

Not in the summer of 1994? (must be my mistake, sorry!)

PieanneNot in the summer of 1994? (must be my mistake, sorry!)

I believe it is natural here to say either, Pieanne...or so it seems to me.

Oh, I was worrying about my proposition - not yours, Davkett!