Robot teachers have some advantages and disadvantages . On the one hand , they can work all day without getting tired and always give correct information . They can also help students learn at their own speed . On the other hand , robot teachers cannot understand students' feelings or give emotional support like human teachers . They may also make lessons less interesting . In my opinion , robot teachers are useful , but they should not replace real teachers completely because students still need human interaction in class.

1. Marcus wanted to know how many people would come the day after.

2. People will communicate with each other using telepathy in 50 years' time

1. Janet told him that he could leave his bags there for a few minutes.

2. My dad asked me where i was going with my friends the following week.

3. It took my brother an hour to fix my broken webcam