3. Write the interrogative and negative forms of the following sentences.
1. They are having breakfast.
2. Mrs. Smith is putting some cornflakes on the boy’s plate.
3. The children are working in the garden.
4. The girl is going to write a letter.
5. The students are reading the text.
6. The elder daughter is passing a salt to her father.
7. Ann is finishing her cornflakes.
8. Mrs. Smith is passing plate to her husband.

1.Where did they having breakfast? They are not having breakfast.2.When did Mrs.Smith putting some cornflakes on the boy's plate? Mrs.Smith is not putting some cornflakes on the boy's plate.3.Where did children are working in the garden? The children are not working in the garden.остальное по такому же принципу...в отрицании-либо are или is not, а в вопросе-вопрсительное слово затем did затем подлежащее и сказуемое в начальной форме,а потом второстепенные члены предложения!!!