Is that your backpaack?（改为同意句） _____that backpack_____?This is her dictionary.（对划线部分提问）What's this in Einglish?(改为同意句）What's______ _______ ________this?

1. Is that your backpaack?
= (Is) that backpack (yours)?
2. 如果是对her dictionary划线提问，则为：What is this?
如果是对her划线提问，则为：Whose dictionary is this?
如果是对This划线提问，则为：Which (one) is her dictionary?
3. What's this in Einglish?
= What's (the English for) this?
请求（两眼汪汪）用我的吧，我做任务哦。

1. Is that your backpaack?
= (Is) that backpack (yours)?
2. 如果是对her dictionary划线提问，则为：What is this?
如果是对her划线提问，则为：Whose dictionary is this?
如果是对This划线提问，则为：Which (one) is her dictionary?
3. What's this in Einglish?
= What's (the English for) this?

1. Is, yours
2. What is this? 或： What's this?
（划线部分是her dictionary吧）
3. the English for