I must say he reads very well and I shouldn’t be surprised if heacting for a living one da

问题补充：

I must say he reads very well，and I shouldn’t be surprised if heacting for a living one day.

A. had taken up

B. takes up 

C. have taken up

D. would have taken up

答案：

A. had taken up

(答案→)B. takes up 

C. have taken up

D. would have taken up

解析：所给的四个选项中没有一个表示对未来的情况的虚拟的形式should+动词原形，或是were to do，因此可以断定if引导的条件句在这里最真实的条件句，用一般现在时表示一般将来时，故B是正确答案。