This is a book.(变成否定句） He is a good boy.(变成一般疑问句） She is in the room.(用where提问)

This is a book变成一般疑问句 This is a book.(变成否定句） He is a good boy.(变成一般疑问句） She is in the room.(用where提问) 句型转化：This is 【 my good friend】.(对中括号的内容提问) （ ） is this?It's an English book.(变成一般疑问句)( ) ( ) an English book He is a math teacher.(变成否定句)He （ ） a math teacher. This is a book.(改为否定句） This is a book（变为否定句） This is a book This is a book的否定句,一般疑问句,及肯定,否定回答 this is his book 和That is an English dictionary 变成一般疑问句 并作肯定或否定回答 There is a book on the desk 怎么变成一般否定句? This is a book （划线部分提问）划线:book It is an apple.(改为否定句) Is this a book? Yes,this is. This is s book.(a book提问) this is a book 改成一般疑问句 并做否定和肯定的回答 This is a book答语 This is my dictionarg?变一般疑问句并做否定回答 This is his book变否定句Thes is a my ID card 改错 It is my pet.(变成否定句） we are friends （变否定句） This is a school （变成否定句） is that a book?作否定回答 there is a book 改成否定句