1 The doctor is to/ has to determine the origin of the disease for its successful treatment.
2. The doctor was able to reveal the consolidation in the lung by the X-ray examination.
3. The scientist is able to observe a rapid growth of microorganisms under the microscope.
4. The doctor says that this patient is allowed/ is permitted to sit up.
1 had already been laid
2 had been explained
3 had already been told
4 had been left
5 had been given
6 will have been closed
7 will have been pulled down
1 - g, 2 - d, 3 - e, 4 - a, 5 - f, 6 - b, 7 - c.
<span>1. There are a lot of rivers in the region.
2. There are a lot of historical books on the shelf.
3. There is a lot of noise in the street.
4. There are a lot of theaters in the city.
5. There is a lot of litter in the bus stop.
6. There is a lot of money in the wallet.
7. There are a lot of candies in the box.
8. There is a lot of work.
9. There are a lot of interesting places here.
10. There are a lot of rich men and women in the district.</span>
2. c
3. b
4. d
5. b
6. b
7. c
8. d
11. a
12. b
13. c
14. a
15. c
16. a