Ⅰ.单词检测 1.__________ adj.必须做的;义务的;强迫的;强制的 2.____ vt.欠(账、钱、人情等);归功于…… 3._______ adv.立刻;不久 4.______ vi.退休;离开 __________ n.退休;离职 5.______ vt.打扰;vi.操心;n.烦扰 6.__________ n.假定;设想 ______ vt.假定,假设
compulsory owe shortly retire retirement bother assumption assume