1. Scientists have discovered vaccines to cure many fatal illnesses
2. He hasn't put his recent qualifications on his CV yet
3. Wake up! You have been sleeping for over two hours now.
4. We all feel thirsty because we haven't drunk enough during training as usual
5. She has known him since he was a small child.
6. It has been snowing heavily all morning and as a result, the roads are slippery now.
chyba dobrze
