The person who takes part in sport competitions is a.выберите и вставьте подходящее по смыслу слово pop singer .sportsman. actress.

The person who takes part in sport competitions is a sportsman

Sportsman так как речь ведётся о спорте

1)

1. The Andes are the mountains in the South America

2. London is the capital of the United Kingdom

3. Lake Baikal is the largest lake in the world

4. Saint-Petersburg is the cultural capital of the Russian Federation

5. The channel between England and France is called the English Canal

6. The Lena leads to the Arctic Ocean

7. Ann had to cross the Atlantic Ocean to get from Europe to Argentine

8. Mont Blanc is the mountain in Europe between France and Italy

9. The Urals are very old mountains

10. The Bahamas are a group of islands near Florida

2)  

1. Do you sometimes watch TV in the mornings?

2. Are you usually at home at 7 o`clock in the evenings?

3. Do you sometimes work at night?

4. What do you usually do at weekends? (at weekends in British English, on weekends in American English)

5. Her aunt lives in California

6. Goodbye! See you on Monday

7. His parents work in a bank

8. The cinema is on the left

9. This shop does not work at night

10. It`s very hot in summer

Объяснение:

1.

This is a boy. The boy is at  school. He is a pupil. This  boy is my  brother’s

friend. He has a cat, but he has no  dog. He likes his  cat. He gives  the cat milk every day.

We live in a big house. I like the house very much.

Those are  books. The books are new. Those books are interesting.

2.

1. I have no book

2. They have no good room

3. Has Mary (got) a pen? Yes,she has - Нельзя так поставить вопрос если нет got

4. She is my best friend

5. The red pencil

6. This book is interesting

3.

1. She is his sister

2. He gave her his pen

3. She loves us

4. He puts a pen in the pocket

5. Our parents and their friends

6. Those and these books there

4.

1. My friend's family

2. My sister's flat

3.  My brother's wife

4. Animals' life

5.

1. Leaves in (the) trees.

2. Men's wives

3. Lemons in pies

4. Dishes on (the) tables

5. Children's toys

6. Towns and cities

7 Sugar and fruit - неисчеслимые,нельзя поставить во множественное число

8. Feet and balls

6.

1. There is someone in the room

2. Is there anybody in the room?

3. There isn't any juice in the fridge   или   There is no juice in the fridge (оба варианта правильные)

4.  Do you know anything about him?

5. I don't know anything about him    или   I know nothing about him (оба варианта правильные)