1. Sam is studying while (his/ their) brother is playing the computer. Vì brother là DT số ít nên ta chia theo thì HTĐ: S + Vs/ves
2. Alex is driving (himself/ his) little sister to school later. Vì Alex chở cô em gái đi học nên chia là his (của anh ấy)
3. The puppy is playing by (itself/ himself) because its owner is at school. 
4. These comic books are Andrew's. If you want to read them, ask (him/me) first. Câu này vì comic books là của Andrew nên chỗ If you want to read them ( nếu muốn đọc nó) thì phải nói với anh ấy nên dùng him
5. You have to believe in (yourself/ myself) câu này dùng myself vì câu này nó nghĩa là bạn có thẻ đặt niềm tin vào myself tức là tôi.
6. I can do it like (she/ her) can. 
7. Jackie is not doing as well as he can usually do. I think (she/ he) is sick. vì Jackie là con trai nên dùng he 
8. There are banging sounds from the floor above us. What do you think (it/ they) are? 
9. Janet and I are going downtown this afternoon. Do (she/ you) want to come too? Câu này là câu hỏi nên dùng you 
10. What are you talking about ? Please calm (me/ yourself) down.
CHÚC BẠN HỌC TỐT!