1.Were you in fail?
→Have you in failed?
Công thức Have/ has + S + V3?
2. No, they weren't .
→No, they haven’t
Công thức No, S + haven’t/hasn’t + V3.
3. Was she sick?
→Has she suck?
Công thức Have/ has + S + V3?
4. Who finished the homework?
→Have you finished the homework
Công thức Have/ has + S + V3?