Marry,i called you yesterday,but nobody answered.where ere Sorry,i was at restaurant.i___as a part-time waitressA was working B worked C am working D have workedsorry,C am work how about
问题描述：
Marry,i called you yesterday,but nobody answered.where ere
Sorry,i was at restaurant.i___as a part-time waitress
A was working B worked
C am working D have worked
sorry,C am work
how about
答
B,就是过去时嘛!
这句话前面是说,我在一家饭店工作,用的是过去式,后面接的,是解释昨天的工作,所以也用过去式
答
b
答
选A
当时我正在工作呢
强调过程用ing嘛.