1. I heard him opening the door. 2. I heard him open the door. 3. I felt him touch my hand. 4. I felt him touching my hand. 5. I saw the birds flying towards the wood. 6. I saw the birds fly to the wood. 7. We saw her swimming across the river. 8. We saw her swim across the river. 9. I did not notice him put the letter on the table. 10. I saw him put his suitcase bythe door. 11. We saw her get off the train and walk towards the booking office. 12. We watched him walk up to the window, stop, open the magazine and begin reading. 13. I felt someone looking at me from the right. 14. We saw her leaving the house.
The professor`s assistant doesn`t show us experiments in the laboratory.
Does the professor`s assistant show them/us ( по грамматике можно подставить и тот и другой вариант, но более логично написать them) experiments in the laboratory.
В 3 предложении у Вас допущена какая-то ошибка, поэтому там нет согласования. Я напишу два возможных варианта.
My friend doesn`t go somewhere in summer.
Does my friend go somewhere in summer?
это пишите если в предложении написано goes
или
My friends don`t go somewhere in summer.
Do your/my (опять таки можно написать и то и то, но более логично your) friends go somewhere in summer?
2. I heard him open the door.
3. I felt him touch my hand.
4. I felt him touching my hand.
5. I saw the birds flying towards the wood.
6. I saw the birds fly to the wood.
7. We saw her swimming across the river.
8. We saw her swim across the river.
9. I did not notice him put the letter on the table.
10. I saw him put his suitcase bythe door.
11. We saw her get off the train and walk towards the booking office.
12. We watched him walk up to the window, stop, open the magazine and begin reading.
13. I felt someone looking at me from the right.
14. We saw her leaving the house.
They don`t take readings every 30 second/
Do they take readings every 30 second?
The professor`s assistant doesn`t show us experiments in the laboratory.
Does the professor`s assistant show them/us ( по грамматике можно подставить и тот и другой вариант, но более логично написать them) experiments in the laboratory.
В 3 предложении у Вас допущена какая-то ошибка, поэтому там нет согласования. Я напишу два возможных варианта.
My friend doesn`t go somewhere in summer.
Does my friend go somewhere in summer?
это пишите если в предложении написано goes
или
My friends don`t go somewhere in summer.
Do your/my (опять таки можно написать и то и то, но более логично your) friends go somewhere in summer?
Если в предложении написано friends