题目内容：

I was busy to ______(babysit)my sister yesterday
Why?

优质解答

I was（加个too) busy to _babysit_(babysit)my sister yesterday 题干有问题!如果不是too...to.结构就得说：I was busy babysitting my sister yesterday即：be busy doing sthHe was too busy to bother about suc...