问题
选择题
Suan , you are so lazy.This job ___ hours before.
A．should finish
B．could be finished
C．must have been finished
D．should have been finished
答案
答案：D
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Suan , you are so lazy.This job ___ hours before.
A．should finish
B．could be finished
C．must have been finished
D．should have been finished
答案：D