1.Do they speak English in class?They don t speak English in class2.I don t know answerDo Iknow answer?3. My friends don t advise Jack to do the job at once.Do my friends advise Jack to do the job at once?4. The Smiths don t arrive in the evening.Do the Smiths arrive in the evening?5. We don t have breakfast at nightDo we have breakfast at night? 6. I dont envy youDo I envy you?. 7. Jack and Tom dont play soccer very well. Do Jack and Tom play soccer very well?8. They dont live in the countryDo they live in a country? 9. We dont often see them at the theatreDo we often see them at the theatre?. 10. I dont understand you.Do I understand you?