If the quantity of textbooks supplied is 10,000 per year and the quantity of textbooks demanded is 8,000 per year, there is a ________ in the market and the price will ________.
【单选题】听力原文:Lena: There are a lot of things that you can’t control in this world, is that correct? Ahmed: Exactly. So you just keep going forward. You keep going, endure and perhaps something good will come ...