问题
选择题
Today many physical bookstores ________ down with financial difficulties, inflexible management strategies and competitive pressure from online bookstores.
A．had closed
B．having closed
C．being closed
D．are closing
答案
答案：D
答案：D 考查动词时态。句意为：由于死板的管理模式和网上书店竞争压力，如今很多实体书店因资金问题正面临着倒闭。根据语意及句中的时间状语“Today”可知，此处表示“目前正在进行和发生的动作”，因此应用现在进行时。故答案选D。