1. What is the boy doing? (present continuous)
2. Why does Danh have to take a panadol? (Why do/does.... → Because....)
3. How old is her English teacher? 
4. What fruit does Hoa prefer? ("does" với thỈd-singular he/she/it/sb's name)
5. What will you have for breakfast 
6. Will you come to the meeting on time tomorrow? (will modal verb (REQUEST): used to ask someone to do something)
7. Which ethnic has the largest population in VietNam? (dân tộc nào có dân số đông nhất VietNam)
8. Which day of the week does your brother often go to the library? 
9. Whose are these gloves? (Whose được dùng như một hình thức sở hữu khi từ đứng trước là chủ ngữ chỉ người)
10. When did you organize a birthday party for your mother? (simple past)
By RoseanneParkBLINK
Best wishes ^>^