—Hello！I want to book a double room.—Sorry.There is no double room ________.

Telling your sorrow to your friends will relieve the pain in your heart. All the words below have a similar meaning with the underlined word, Except ______.

 Duty is an act or a course of action that people ____ you to take by social customs, law or religion.

 Organized volunteering and work experience has long been ___vital companion to___ university degree courses.

Team leaders must ensure that all members ______their natural desire to avoid the embarrassment associated with making mistakes.