Daming is visiting the US.He’s in New York with his cousin Simon.

Simon:These postcards are great!

Daming:Yes,they are.And look at this one.It’s a picture of the Great Wall.

Simon:Tell me more about the Great Wall.How long is it?

Daming:It’s more than twenty thousand kilometres long.

Simon:Wow!It’s really long!

Daming:Can you tell me something about New York?How big is it?

Simon:It’s very big.It has got more than eight million people.

Daming:That is big.

Simon:How big is Beijing?

Daming:Beijing has got about twenty million people.

Simon:Wow!That’s really big!