If the new arrangement doesn’t , we’ll go back to the old one.
A. work over
B. work out
C. work up
D. work in
网友回答
A. work over
(答案→)B. work out
C. work up
D. work in
解析：work out 在此表示“有预期结果”；work over 意为“调查，重做”；work up 意为“逐步建立，逐步发展”；work in 意为“配合，引进”。