问题补充：
If he my advice, he wouldn have lost his job.
A. followed
B. should follow
C. had followed
D. would follow
答案：
A. followed
B. should follow
(答案→)C. had followed
D. would follow
解析：主句从句均为对过去的事情虚拟，从句为过去完成时，主句为should/would/could/might have done. 句意：如果他听取了我的建议，他就不会失去他的工作。对现在的事情虚拟，从句用一般过去时，而主句为should/would/could/might＋do；对将来的事情虚拟，从句为一般过去时或者should do或者were to，而主句为should/would/could/might＋do．
