this is a book 提问
this is a book 提问
This is s book.(a book提问)
This is a book.对a book进行提问
This is a book.对book 提问时what is it 对,还是what is this?
This is a book
this is a book.(对划线部分提问)(划线部分为a book)
This is a book 对划线部分提问 (划线部分 BOOK)大神们帮帮忙
对This book is eight dollars 提问
This is my book用whose提问
This is my book.对my提问
Is this a book?" "Yes,this is."
this is my English book对my English book提问