On Monday, Pookie had his kindergarten physical.  BAGD took him.  When they came back I asked Pookie some questions.

BAGM:  Pookie, where did you and Dad go?
Pookie: School, to school.
BAGM:  No, not to school.  Where did you and Dad go today?
Pookie:  Doctor.
BAGM:  The doctor!?  What happened at the doctor?
Pookie:  Shot.
BAGM:  You got a shot?  How many shots?
Pookie:  Two!
BAGM: where did they give you the shots?
Pookie:  (touching his thighs) Right here.  In my leg.
BAGM:  Did it hurt?
Pookie:  No.

As you can see, he is getting very good at answering questions.  Sometimes, there is a bit of random echolalia in the middle of the conversations, but other times not.