by, of, to, in, after, without, between

1. D. I. Mendeleyev made ... a thorough study ... the relation ... the

atomic weights... the elements and their properties. 2. Mendeleyev’s periodic

table consisted ... seventeen columns. 3 . a general way Mendeleyev’s

table resembled ... the present periodic table ... the noble gases.

4. Mendeleyev placcd... a number... elements... different positions. 5. The

periodic law was accepted ... its proposal... Mendeleyev. 6. M ost... the

elements occur ... the periodic table ... the order ... increasing atomic

weights. 7. Mendeleyev predicted the existence ... six elements

corresponding... vacant places... his table. 8. The properties... the newly

discovered elements were very close ... the properties predicted ... him

ответ: 3 форма: 1. She is the cleverest girl at our school.

2. They are the cruelliest people in the world.

3. He is the boldest person I have ever met on my way.

4. You are the better player of our football team.

5. It is the most beautiful creature in the wide world.

2 форма: 1. She is cleverer than him

2. He is bolder than her

3. It is blacker than this thing

4. She is slimer than her

5. it is brighter than sky.

As_as

1. The tortoise is as expensive as rabbit

2. I am not nearly as clever as my brother

3. My house is almost as big as yours

4. My house is not as big as yours

Объяснение:

Тут все элементарно, самое главное знать и вникать в тему, все что я написала, на 100 процентов правильно!

This happened three years ago. On the first of July I decided to go on a mountain trip. I had never made such a trip before. We set off in the morning at 8 o'clock. The weather was fine. The scenery was fantastic. We walked for about three hours. At 11 a.m. the weather started to change. The sun had gone at 11:20. The wind started blowing. At 12 a.m. it began to snow. It was getting colder and colder. We couldn't see anything around us.

We kept walking for two hours because we were afraid of getting frozen to death. At 2 p.m. it stopped snowing, but we understood that we had got lost. We were in despair. We had to stay overnight in mountains. In the morning at 6 o'clock we managed to find our way to the camp. I don't think I'll ever go to the mountains.