问题
选择题
— How was your weekend, Bella?
— Awful! That was the first time I _____ alone at home, bored to death.
A．has left
B．had left
C．has been left
D．had been left
答案
答案：D
考查时态。It/That was the first/second… time that某人第几次……，从句用过去完成时，选D。