水泥安定性试验，调整好水位，沸煮试件应保证在30min±5min内加热至沸腾，并恒沸（）。

I once worked in the English Department in the university but I got laid off because I _____ the courses     required for further education. Meanwhile my colleagues were still there, ______ easy money.    [ ]

A. hadn’t taken; making    

B. didn’t take; making  

C. hadn’t taken; made  

D. didn’t take; made