细讲讲呗,the upset不是指“失落的人”吗?the answer on my book is "which is"

细讲讲呗,the upset不是指“失落的人”吗?the answer on my book is "which is" which is the best answer? The book _I found on my way home is my brother's.引导词是用which My book is on the desk Which book on earth is the one you want? This is your book.My is on the desk. which one is the right answer the book is on the table是对的吗? My book is in my bag on the desk 翻译 My peneil and my math book is on the desk is用对了吗 Is the book on the ground ( ),Jim?—No,( )book is in my backp Which is your pen?The pen on the shelf is my pen.问句里的which是对