I promise to keep my mouth ................ The secret is safe with me.

....................... documents are not publicly shared among employees.

A close friend is someone you can confide ............................

You've got my promise that I'll take it to the .................. No one but me knows about this.

Knowing this secret is just like opening a ...................... box. You'll regret it.

They were seen leaving the house in a .................. manner. Maybe they didn't want anyone to notice.

The look in his eyes became ................. He might be avoiding something.

The interviewee required his name to be ............. He didn't want anyone to know who he was.

His secrets went .............. after one night. They are open to the public now.

He is a/an .................. person. He knows how to conceal his secrets with good stories and reasons.