问题
选择题
Last night the order came that all those infected with the deadly disease ________.
A．was separated
B．should separate
C．be separated
D．were separated
答案
答案：C
虚拟语气考查题。在表示命令、要求、建议等的从句中谓语用(should) do。句意：昨天晚上命令传来感染致命疾病的人应被隔离。
