Only when the work is done be able to go back home.A. you haveB. you willC. will youD. ha

问题补充：

Only when the work is done be able to go back home.

A. you have

B. you will

C. will you

D. have you

答案：

A. you have

B. you will

(答案→)C. will you

D. have you

解析：当only引导的状语从句位于句首时，主句采用倒装语序。句意：只有当工作做完时，你才能回家，结合语境可知本句主句描述的是将来发生的动作，故用一般将来时态，选C。