1 - Mice don't catch cats. Cats catch mice.
2 - The Eath doesn't go round the Moon. The Earth goes round the Sun.
3 - The river Volga doesn't flow into the Black Sea. The river Volga flows into the Caspian Sea.
4 - Patients don't look after nurses in hospitals. Nurses look after patients in hospitals.
5 - Water doesn't boil at 50 degrees Centigrade. Water boils at 100 degrees Centigrade.
6 - Indians don't live in Scotland. Indians live in America.
7 - Carpenters don't make things from metal. Carpenters make things from wood.
8 - Our city doesn't stand on the river Thames. Our city stands on the river Moskva.
9 - It doesn't often rain in Africa. It often rains in Mexico.
10 - Tigers don't eat grass. Tigers eat meat.
11 - Our group doesn't study Chinese. Our group studies English.
12 - Our classes don't begin at 8 a.m. every day. Our classes begin at 8 a.m. five days a week.