1. It is very cloudy. I think it will rain later.
Varianta C.
2. Unless we protect them, some animal species will disappear soon.
Varianta A.
3. He might not be able to help you - he is very busy today.
Varianta C.
4. My homework is quite difficult. I may need more time.
Varianta C.
5. You won't pass the final exam if you don't study every day.
Varianta C.
6. Watch out ! The floor is wet and you could fall !
Varianta C.
