it was at 8 o' clock yesterday evening _____ the electricity was cut off.a,when b,untilc,thatd,which
问题描述：
it was at 8 o' clock yesterday evening _____ the electricity was cut off.
a,when
b,until
c,that
d,which
答
A
答
选C嘛，要是去掉at的话就选when。
答
b，错了找我，好歹我也是名英语教师。
答
选A，when在这里表示当什么时候。句子的意思是，昨晚停电的时候是晚上八点
答
注意有at了吗,是个强调句,所以填that!