помогите пожалуйста))))
Поставьте следующие предложения во множественное число.
1. His wife is not ready yet. 

2. Is there a mouse under the bed?

3. A high mountain is very cold at the top.

4. There is a large shipping company in Istanbul. 

5. There is only one holiday this month. 

6. This class is very boring. 

7. My foot is tired. 

8. There is a party this weekend. 

9. That is a large box. 

10. This is an expensive watch.

Поставьте следующие предложения в единственное число.
1. Are there any geese on the pond? 

2. Our enemies are near. .

3. These watches are broken. .

4. Those Rock and Roll bands are loud. .

5. There are many fish in the sea. .

6. There are potatoes for dinner. .

7. Those knives are very sharp. .

8. Your children are very good. .

9. The cliffs are dangerous.