Only ______ allowed to take part in the speech contest in our class and so the rest ______ disappointed.

A．was John; were

B．John was; were

C．was John; was

D．John was; was

在Word中，可______，使文档增加安全性。

A．加密文件路径
B．加密文件名
C．设置“打开权限密码”
D．设置“保存权限密码”