Complete the text with the correct form of the verbs in brackets (Hoàn thành văn bản với dạng đúng của các động từ trong ngoặc)
I like (like) my brother, but I 1. (think) he has a problem. He 2. (not sleep) much at weekends because he 3. (play) video games all day and 4. (watch) TV all night. His friends 5. (not see) him very often because he 6. (stay) in his room and he 7. (not go) outside. He 8. (speak) to us on his mobile phone when he's hungry. I 9. (not know) if this is normal. Please help!