The blast approaches the speed of sound in air a) power b) wind c) pressure d) shock 2. the fires are started by from the blast a) thermal energy b) a shock wave c) nuclear fusion d) gamma rays 3. the intensity of initial nuclear radiation with distance from the point of burst. a) depends b) does not change c) increases d decreases complete the sentences with a proper 1. south africa its nuclear arsenal before joining the npt 2, north korea another nuclear test. a) has conducted b) conducted c) conducts d) is conductin 3. next month talks on iran's nuclear program in vienna, austria. a) begins b) began c) have begun d) will begin 4. nowadays india steadily the size of its nuclear arsenal. a)increase b)will increase c)is increasing d)has increased

1. The blast c) pressure approaches the speed of sound in air.
2. The fires are started by a) thermal energy from the blast.
3. The intensity of initial nuclear radiation d decreases with distance from the point of burst.
1. South Africa b) conducted its nuclear arsenal before joining the NPT
2. North Korea another nuclear test. a) has conducted
3. Next month talks on Iran's nuclear program d) will begin in Vienna, Austria.
4. Nowadays India c)is steadily increasingthe size of its nuclear arsenal.

Природа – удивительна и уникальна. Это можно заметить и на любой улице города, но особенно – в лесу. Достаточно выделить один день и поехать с семьей или с* друзьями, можно даже в одиночестве, в ближайший лес. Увидеть, какое огромное количество животных и птиц обитает в наших широтах, оценить многообразие растений. Примечательно, что это можно сделать в любое время года - наши леса удивительны и прекрасны всегда.
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Nature is amazing and unique. This can be seen on any street in the city, but especially in the forest. It is enough to single out one day and go with family or friends, you can even alone, into the nearest forest. To see how many animals and birds live in our latitudes, to appreciate the variety of plants. It is noteworthy that this can be done at any time of the year - our forests are amazing and beautiful always.

1)1. cooked 2. was cooking 3. was cooking 4. i was not (=wasn't) reading … 5. i was not (=wasn't) reading … 6. what was he doing when i came in? 7. what was he doing … ? 8. watered 9. was watering 10. what was pete doing … ? 2)1. came; was having 2. returned; was listening 3. entered; was drawing 4. came in; was doing 5. was airing; caught 6. met; was going 7. was washing; knocked 8. were dancing; came 9. was washing; broke 10. what were they doing when you saw them?