国王和王后住在一座宏伟的宫殿里。

The king and queen live in a magnificent ___palace.

白金汉宫是伦敦最著名的地标之一。

Buckingham ___Palace is one of London's most famous landmarks.

古老的总统府现已作为博物馆向公众开放。

The old presidential ___palace is now open to the public as a museum.