CÁCH H I VÀ TR L I AI ĐÓ ĐANG LÀM GÌ
1/Form: Cách h i và tr l i ai đó đang làm gì? ỏ ả ờ are you/ they I + am What doing? He / She/ It/ Lan + is + doing? is he/ she/ Lan You/ We/ They/ Lan and Ba + are a/ What are you doing? b/ What is he doing? c/ What are they doing?Eg: I am riding my bike. He is playing games They are watching television.