We love having our grandchildren visit, but they always leave such a ____ for us to clean up afterwards.
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So far as I know what people's tastes haven't changed much, and, ____, they are getting more diverse these days than they used to be.
September 1939 saw the ____ of the Second World War.
His mother died in the accident, too. But we didn't tell him the news as we were afraid that would ____ his confidence in full recovery.
2014年我国决定将“城居保”和( )两种社会保险制度合二为一。
A. 事业单位养老保险
B. 城镇职工养老保险
C. 政府机构养老保险
D. 新农保