the book he is looking is very thick.这里可以用2个is吗?这个是什么语法?

he is opening the book对opening the book提问 He is the a_______ of this book 改错.He's book is the thickest. He is looking for the book.------ ------ he looking for? He is book is on the desk (改错) the book is ever interesting .he likes to read ithe is --- ---the interesting book He is looking a book in the study now.改错 应该说this is the book he gave me还是this is the book he gave to me?为什么? He gave me a book which is interesting.which指代的是不是a book 改为简单句是不是He gave me a book,The book is interesting. The book ( )he bought yesterday is very intereThe book ( )he bought yesterday is very interesting.为什么不能填when? He gave me a book which is interesting. He gave me the book which is interesting. 哪句对 He gave me a book which is interesting.He gave me the book which is interesting.哪一句对 He is so short that he can't reach the book on the shelf.(改为同义句)He is _____ _____ _____ _____ the book on the shelf.He is _____ _____ _____ _____ _____ the book on the shelf. 简单句变为复合句He is the young writer.He wrote the book. could you______ the TY是looking for还是looki for He is reading a book. WHERE IS THE BOOK? the book is (you)