1. Robots can do all our housework in the future. (able)
 Robots will be able to do all our housework in the future.

=>be able to = can: có thể làm gì?
2. I love films but I don't like watching them on TV. (although)
    I don't like watching films on TV although I love them.

=> although + S + V, S+ V
3. They like playing the guitar in their free time. (interested)
 They are interested in playing the guitar in their free time.

=> tobe interested in = like: thích làm việc gì
4. No student in my class is as good as her. (best)
 She is the best student in my class.

=> S + tobe + the + adj (est) ....: so sanh hơn nhất
5. Be careful or you will have an accident. (careless) 
 If you are careless, you will have an accident.

=> If + S+ V (hiện tại đơn), S + will + V (bare)....: câu ĐK loại 1