b. Intonation
Intonation usually goes dowo on the last strongly stressed word in a sentence. In a list, the intonation goes up with each item but down on the last item. Listen and repeat.

He bought a pen.
He bought a pen and a pencil.
He bought a pen and a pencil and a pin.

c. Practise this game in a group of four or five.

You must remember what the others have said and then add something to the list.

EXAMPLE

A: Peter went to Paris and he bought a pipe.
B: Peter went to Paris and he bought a pipe and a picture.
C: Peter went to Paris and he bought a pipe, a picture and a piano.