1. There is some ice on the lake.
2. There is some coffee in the cup.
3. There is some food on the shelf.
4. There is some ice-cream on the apple pie.
5. There is some milk on the low table.
6. There is some birthday cake on the dish.
Was the art teacher very interested in my painting?
The art teacher was not very interested in my painting.
Is the cinema closed?
The cinema is not closed.
1. an, 2. a, 3. a, 4. a, 5. -.
The President of the United States of America-Barack Obama
<span>1. The work of power stations is controlled by e</span><span>lectronic devices
</span>2. The trajectories of spaceships are calculated by them.
3. N<span>ew phenomena of nature are discovered by people due to </span><span>electronic devices.
4. A</span><span> variety of tubes for specialized functions were designed by scientists.
5. T</span><span>he transistor was invented by a</span><span>merican scientists in 1948.
6. T</span><span>he size of devices were greatly reduced by </span><span>integrated circuits
7. </span><span>Packing density was </span><span>increased by n</span><span>ew types of integrated circuits
8. </span><span>Man's intellectual power has been extended by electronics
9. </span><span>New ways for the improvement of integrated circuits technology are being looked by </span><span>scientists.
10. </span><span>The concept of integrating device and built the first 1С was developed by </span><span>Jack Kilby </span><span>in 1958</span>