Dưới đây là các câu đã hoàn thành với dạng thích hợp của động từ trong ngoặc:

1. **“You (have) a brother or sister?” — “No, I don’t.”**
→ "You **have** a brother or sister?"

2. **My brother is lazy. Sometimes he (not do) his lessons before going to school.**
→ "Sometimes he **doesn't do** his lessons before going to school."

3. **You can’t go out now. It (rain) very hard.**
→ "It **is raining** very hard."

4. **“You (know) that boy?”**
→ "You **know** that boy?"
**“Yes. He (be) a friend of my brother’s.”**
→ "Yes. He **is** a friend of my brother’s."