That's a good plan .We just need to keep _____ it.A.working on B.working out C.working hard D.working with说明原因喔

That's a good plan .We just need to keep _____ it.A.working on B.working out C.working hard D.working with说明原因喔
That's a good plan .We just need to keep _____ it.
A.working on B.working out C.working hard D.working with
说明原因喔

That's a good plan .We just need to keep _____ it.A.working on B.working out C.working hard D.working with说明原因喔
答案a,work on .继续工作,不断工作,整句的意思是：那是个那计划,我们只需要继续下去.