Упр.11 Юнит 3 Step 3 ГДЗ Rainbow English 9 класс

Which of the two is right — the plural or the singular?

1. Where are Sally’s clothes that she takes for her holiday?
2. Mathematics is a rather difficult subject.
3. The spectacles that Ann has bought are not cheap at all.
4. The news they brought is sad and depressing.
5. Rick! Your trousers are dirty.
6. She told me she would wait for me at the stairs. But where are the stairs?
7. The money he earned was enough to support the family.
8. I can’t say physics is my favourite subject.
9. Acoustics is a part of physics.
10. Is gymnastics a sport or a game?
11. Brussels is a city in Belgium, its capital.