This book is ________ as it is the only one ever signed by the author.
举一反三
- This book is ________ as it is the only one ever signed by the author. A: special B: unique C: are D: unusual
- This book is _____as it is the only one ever signed by the author. A: special B: unique C: rare D: unusual
- This album is _____ as it was the only one ever signed by the president. A: odd B: unique C: common D: singular
- The book is ____as it was the only one signed by this writer. A: unique B: rare C: unexpected D: universal
- The book has more than one author.