A-A+
The envelope wasnt sealed so I opened it and
问题详情
The envelope wasnt sealed, so I opened it and found a card in it, but the inside of the card was empty.此题为多项选择题。请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：empty——blank
empty强调容器中空无一物，blank强调纸上或脑海中一片空白。此处是指卡片上没有写任何字，应当使用blank。
