__Will you join us to play basketball on Saturday afternoon?

__Will you join us to play basketball on Saturday afternoon?__( ),but I promised to go swimming
__Will you join us to play basketball on Saturday afternoon?
__( ),but I promised to go swimming with Eric.
A.Never mind.B.Many thanks.C.Take it easy.D.My pleasure.
这是2009年安徽中考英语的一道选择题
我选的是D.
参考答案是B,看了一下解释说是对于别人的邀请首先要表示感谢,若有事情不能接受的话要说明拒绝的理由.
但在沪江英语（英语中考,最近五年单项选择题最难试题汇总）上的解释是
( ) 85.---Will you join us to play basketball on Saturday afternoon?
---________,but I promised to go swimming with Eric.
A.Never mind B.Many thanks C.Take it easy D.With pleasure
解析：选D.此题考查日常交际用语,根据答语可知选择D.即：我非常乐意和你们打篮球,但我答应和Eric去游泳了.