“大米涨价了,也得买”;“金价涨了,以后再买金项链吧”这些经济现象我们都感受过。这里包含的经济学道理是①价格的变动会引起需求量的变动 ②价格变动对对生活必需品的影响较小 ③价格变动对高档耐用品的影响比较大 ④价格变动对各种商品需求量的影响是相同
— David, keep ______ in mind that you have to be home by 10 o'clock. — OK, Mom, I will.
The lift ______ and we were trapped inside it.
______ all my homework unfinished, I am not allowed to go online to play games.
A 3G mobile phone, ______to be most useful and fashionable, is popular with some teenagers.
She will have to ______ herself to the new condition.