1. Please be quiet. I AM TRYING to concentrate.
2. Look! It IS SNOWING.
3. The swimming bath OPENS at 9 a.m. and CLOSES at 6 p.m. every day.
4. Tom FELL down the stairs and BROKE his hand yesterday.
5. George WAS WATCHING TV when I PHONED him yesterday.
6. What WILL YOU BE DOING at this time tomorrow
7. I have a car but I DO NOT USE use it often.
8. How often DO YOU GO to the cinema.
9. It is six o`clock. I HAVE BEEN WAITING Ann for half an hour.
10. We needed some money last year, so we SOLD our car.
11. Do not phone me tomorrow, at this time I WILL BE SLEEPING.
12. How long you HAVE YOU BEEN STUDYING English