3. What time will we meet them ? ( hỏi Tg cụ thể : What time)
4. How often does he often go to the museum? ( hỏi về tần suất : how often )
5. What are the girls doing? ( hỏi ai ddlmj : what be S ving)
6. Who loves taking photos? ( hỏi về ng : who)
7. How long have Mary and Peter been pen pals? ( hỏi về khoảng TG : how long)
8. Why doesn't our friend join that club? ( hỏi về lí do : why)
9. When did they build a villa? ( hỏi về thời điểm cụ thể)
10. Who didn't come to your party? ( hỏi về ng)
