战国时期流通货币种类有刀、布、钱和爰金,刀币是齐国货币。考古发现在古代赵、燕及辽东和朝鲜北部亦有大量刀币流通,这一现象主要是因为
I went to a park yesterday. It _______ very interesting.
It’s two hundred years _______.
How long is _______ school?
There is a big Chinatown _______ New York.
I want _______ go there.