Bn phải gạch chân vào chữ nào đó thì mới xác định được từ để hỏi
1.what did he do at the party
2.what will nam do at ha long bay
What is he doing?
What will he build in Ha Long Bay?
1,What did he do at the party?
2,What will Nam do at Ha Long Bay?
1.what did he do at the party
2. what will nam do at the HA LONG BAY