Men and women should be treated equally according to the law, but there is great room for improvement.
A. in reality
B. above all
C. after all
D. in return
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(答案→)A. in reality
B. above all
C. after all
D. in return
解析：考查介词短语：A.in reality事实上B．above all最重要的是C.after all毕竟D．in return做为回报，句意：根据法律男女要被平等的对待，但实际上还有很多要改进的地方。选A。