8 Напишите предложения, употребив глагол в скобках в соответствующем времени:
1. Measurements in all scientific works (to perform) by means of various apparatuses and instruments.
2. It is known that volume of liquids (to measure) in litres.
3. The solution kept for three months in a warm place (to become) coloured and not fit.
4. When acid (to add) to the potassium chloride solution little change (to observe) in the hydrogen ion concentration.
5. The centigrade scale (to use) in most scientific works.
6. The Fahrenheit scale (to introduce) into science in the eighteenth century.
7. Alcohol (to dissolve) many synthetic and natural substances.
8. After a thorough analysis of literature and experimental findings Mendeleyev (to arrange) all the elements in a table which consisted of vertical groups and horizontal periods.
9. In France, Sweden and Germany new elements (to discover) according to Mendeleyev table.
8 Напишите предложения, употребив глагол в скобках в соответствующем времени:
1. Measurements in all scientific works (to perform) by means of various apparatuses and instruments.
2. It is known that volume of liquids (to measure) in litres.
3. The solution kept for three months in a warm place (to become) coloured and not fit.
4. When acid (to add) to the potassium chloride solution little change (to observe) in the hydrogen ion concentration.
5. The centigrade scale (to use) in most scientific works.
6. The Fahrenheit scale (to introduce) into science in the eighteenth century.
7. Alcohol (to dissolve) many synthetic and natural substances.
8. After a thorough analysis of literature and experimental findings Mendeleyev (to arrange) all the elements in a table which consisted of vertical groups and horizontal periods.
9. In France, Sweden and Germany new elements (to discover) according to Mendeleyev table.
1. Measurements in all scientific works (to perform) by means of various apparatuses and instruments.
2. It is known that volume of liquids (to measure) in litres.
3. The solution kept for three months in a warm place (to become) coloured and not fit.
4. When acid (to add) to the potassium chloride solution little change (to observe) in the hydrogen ion concentration.
5. The centigrade scale (to use) in most scientific works.
6. The Fahrenheit scale (to introduce) into science in the eighteenth century.
7. Alcohol (to dissolve) many synthetic and natural substances.
8. After a thorough analysis of literature and experimental findings Mendeleyev (to arrange) all the elements in a table which consisted of vertical groups and horizontal periods.
9. In France, Sweden and Germany new elements (to discover) according to Mendeleyev table.
1
Helper
Measurements in all scientific works are performed by means of various apparatuses and instruments.It is known that volume of liquids is measured in litres.The solution kept for three months in a warm place becomes coloured and not fit.When acid is added to the potassium chloride solution little change is observed in the hydrogen ion concentration.The centigrade scale is used in most scientific works.The Fahrenheit scale was introduced into science in the eighteenth century.Alcohol dissolves many synthetic and natural substances.After a thorough analysis of literature and experimental findings, Mendeleyev arranged all the elements in a table which consisted of vertical groups and horizontal periods.In France, Sweden and Germany new elements were discovered according to Mendeleyev's table.
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20 Апр
в 12:58
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