Сделайте следующие предложения отрицательными 1.it is very difficult 2. my students are advanced 3. this apple is red 4. your tea is ready 5. they are angry 6. this detali is very important 7. my hands are clean

1.It is not very difficult
2. My students are not advanced
3. This apple is not red
4. Your tea is not ready
5. They are not angry
6. This detail is not very important
7. My hands are not clean