Dưới đây là các câu trả lời cho các câu hỏi bạn đã liệt kê:

1. **Are you going to repair those shoes?**
- **Yes, I am going to repair them. / No, I am not going to repair them.**

2. **How many languages do people speak in Canada?**
- **People in Canada speak two official languages: English and French.**

3. **Some people will interview the new president on TV.**
- **The new president will be interviewed on TV by some people.**

4. **Why didn't they help him?**
- **They didn't help him because (reason).** (You need to provide the specific reason for this.)

5. **The students have discussed the pollution problems since last week.**
- **The pollution problems have been discussed by the students since last week.**

6. **Do they teach French in this school?**
- **Yes, French is taught in this school. / No, French is not taught in this school.**

7. **Did the teacher give the handouts?**
- **Yes, the teacher gave the handouts. / No, the teacher did not give the handouts.**

8. **They were cleaning the floor.**
- **The floor was being cleaned by them.**

9. **The boys broke the window yesterday.**
- **The window was broken by the boys yesterday.**

10. **They will hold a meeting before May Day.**
- **A meeting will be held by them before May Day.**

11. **How can they open the safe?**
- **The safe can be opened by them (using a method).** (Specify the method if known.)

12. **Is she making big cakes for the party?**
- **Yes, she is making big cakes for the party. / No, she is not making big cakes for the party.**

13. **Will you invite her to your party?**
- **Yes, I will invite her to my party. / No, I will not invite her to my party.**

14. **Mary is cutting the cake with a sharp knife.**
- **The cake is being cut by Mary with a sharp knife.**