A. Great!
B. It's near the post office.
C. I go by ship.
D. She goes home by taxi.
E. Yes, you can.
Yesterday I _______ a great time! ( )
①人们对商品的消费,受相关商品价格的影响
②商品价格的变动会引起需求量的变动
③当某种商品价格较贵时,人们可以用其互为替代品满足自己的需求
④一种商品的价格的上涨必然会使另一种商品的消费量增加