1、桌子上曾有两个红色的文具盒
There used to be two red pencil-boxes
There were two red pencil-boxes
2、她昨天晚上去学校了
She went to school last night
3、他前天看见一个美丽的小姐了吗?
Did he see a beautiful girl the day before yesterday?
4、今天早上,她没有洗她的鞋子
This morning she didn't wash her shoes.
5、Sam前天晚上削铅笔了
Sam cut the pencil at night the day before yesterday