Отметьте существительное во множественном числе: : : a) feet.. b) children.. c) tooth.. d) data.. e) news.. f) advice.. g) money.. h) phenomena.. i) postmen.. j) woman.. k) time.. l) .

Feet(ноги),сhildren(дети), news(новости), money(деньги).Думаю так.

Feet - множественное число(plural)
children - множественное число(plural)
tooth - множественное число(plural)
data - множественное число слова datum
news - единственное число!(singular)
advice - единственное число(singular)
money - единственное число!(singular)
phenomena - множественное число слова phenomenon 
postmen - множественное число(plural)
woman - единственное число(singular)
time - время, единственное число(singular)
watch - часы, единственное число(singular)

feet, children, tooth, data, phenomena, postmen.

1. Yes they are. They use polite words.

2. The British are reserved. They don't like displaying their emotions even in dangerous and tragic situations.

3. Englishmen are conservative, they love familiar things.

4. There are  a lot of traditional ceremonies such as the "Changing of the Guard" at Buckingham Palace, "Trooping the Colour", which is performed on the Queen's official birthday, or the "Ceremony of the Keys", that takes place every night at the Tower of London.

5. Traditional British dishes are porridge, pudding, toasts. They like to drink tea.

6.Yes, they do. For example, Everything is orderly: the lawns and the trees are neatly trimmed.

7. Yes they do. An Englishman is said to be a countryman at heart. The English countryside is many things to many people. It means peace and quiet, beauty, good health and no crime. Most Englishmen love gardens.

8. The British love animals very much.

9. The British are polite, conservative and reserved.

10. I respect the British, because they keep their traditions and love their country.

11. The Russians are not so reserved and many of them don't drink much tea.

1.Yes they are. They use polite words.

2.The British are reserved. They don't like displaying their emotions even in dangerous and tragic situations.

3.Englishmen are conservative, they love familiar things.

4. There are  a lot of traditional ceremonies such as the "Changing of the Guard" at Buckingham Palace, "Trooping the Colour", which is performed on the Queen's official birthday, or the "Ceremony of the Keys", that takes place every night at the Tower of London.

5. Traditional British dishes are porridge, pudding, toasts. They like to drink tea.

6.Yes, they do. For example, Everything is orderly: the lawns and the trees are neatly trimmed.

7.Yes they do.Englishman is said to be a countryman at heart. The Eng¬lish countryside is many things to many people. It means peace and quiet, beauty, good health and no crime. Most Englishmen love gardens.

8The British love animals very much.

9.The British are polite, conservative and reserved.

10Irespect the British, because they keep their traditions and love their country.

11The Russians are not so reserved and don;t drink much tea.