ayou were working too hard you'd better keep a between ( )wo

you were working too hard you'd better keep a between ( )work and relaxation。你工作太幸苦了,你最好要保持工作和休息间的平衡!所以,这里应该选C。选项A承诺；B领导,引导；D日记,日常的!这个题目本人认为应该是这样的：you were working too hard you'd better keep a balance between (diary )work and relaxation。