No sooner ____ than it began to rain heavily.[ ]

A. the game began

B. had the game began

C. did the game begin

D. had the game begun

关于我国的失业保险，下列说法错误的是（ ）。

A．企事业单位按本单位工资总额的2%缴纳失业保险费，员工按本单位平均工资的1%缴纳失业保险费

B．所在单位和本人按规定缴费满一年，才可能领取到失业保险金

C．失业保险金的最长给付期限为24个月

D．失业保险覆盖范围包括所有城镇企业、事业单位的失业员工