Самолет летит со скоростью 900 км/ч. Свляется ли этот самолет сверхзвуковым? Скорость звука примите равной 330 м/с

IV. Перепишите предложения и переведите их, обращая внимание на перевод условных предложений:

1.    He would have used the device, if it had been in order.

2.    If there were any letters from him, I should telephone you.

3.    Were the weather fine, we should go home on foot.

4.    If you know the subject, you will write this test.

1. If you had modified the conditions at the very beginning, you would have obtained better results.
2. The lecturer would refer to that formula in his last lecture provided it were important.
3. He couldn’t solve the problem unless he calculated this equation at our last lesson.
4. If they had identified this substance at that time, they could have finished the experiment long ago.
5. There would be no difficulties now provided this problem was considered properly at our last meeting.
6. The speed of a sputnik would be less provided it moved at a greater distance from the earth.