I. Перепишите предложения, откройте скобки 1. Greetings from London! It is warm and sunny and I am having a wonderful time. I am staying with my Uncle Douglas. He lives in the city centre. My uncle took me to Harrods yesterday but I did not buy anything. 2. This time last year my parents were in Paris. 3. Who did you meet last Friday? 4. It is 7 now and I am planning to go out for a nice meal. 5. Look! The girl is trying to find Argentina on the globe. II. Перепишите словосочетания, вставьте предлоги to go on a trip, to travel by car, to walk on foot, to be popular with smb for sth, by air, on 6th June, on Monday morning, at Christmas, on Christmas Day, next Saturday, I'll be back in ten minutes, at night. III. Перепишите предложения, вставьте артикли a, an, the или ничего 1. Can you ride a bicycle? 2. I bought a new book yesterday but the book was boring. 3. I like swimming in the sea. 4. Would you like to be in the army? 5. I live in King Street. 6. Have you ever seen the Tower of London? 7. The money is on the table. 8. Milan is a large city in the north of Italy. 9. I stayed with an Italian friend of mine. 10. Last night we saw a play at the Royal Theatre. 11. You must visit the Museum of Modern Art. 12. In London the Houses of Parliament are beside the River Thames.

Вот подробные ответы на все три части задания:

I. Перепишите предложения, откройте скобки

1. Greetings from London! It is warm and sunny and I am having a wonderful time. I am staying with my Uncle Douglas. He lives in the city centre. My uncle took me to Harrods yesterday but I did not buy anything.
   (В этом предложении скобок нет, поэтому переписываем как есть.)

2. This time last year my parents were in Paris.
   (Снова скобок нет, предложение уже полное.)

3. Who did you meet last Friday?
   (Прямой вопрос, скобки не нужны.)

4. It is 7 now and I am planning to go out for a nice meal.
   (Предложение открытое, скобки не требуются.)

5. Look! The girl is trying to find Argentina on the globe.
   (Предложение с действием, скобки отсутствуют.)

II. Перепишите словосочетания, вставьте предлоги

• to go on a trip – правильно: to go on a trip

• to travel by car – правильно: to travel by car

• to walk on foot – правильно: to walk on foot

• to be popular with smb for sth – правильно: to be popular with someone for something

• by air – правильно: by air

• on 6th June – правильно: on 6th June

• on Monday morning – правильно: on Monday morning

• at Christmas – правильно: at Christmas

• on Christmas Day – правильно: on Christmas Day

• next Saturday – правильно: next Saturday

• I'll be back in ten minutes – правильно: I'll be back in ten minutes

• at night – правильно: at night

III. Перепишите предложения, вставьте артикли a, an, the или ничего

1. Can you ride a bicycle?

2. I bought a new book yesterday but the book was boring.

3. I like swimming in the sea.

4. Would you like to be in the army?

5. I live in King Street.

6. Have you ever seen the Tower of London?

7. The money is on the table.

8. Milan is a large city in the north of Italy.

9. I stayed with an Italian friend of mine.

10. Last night we saw a play at the Royal Theatre.

11. You must visit the Museum of Modern Art.

12. In London the Houses of Parliament are beside the River Thames.

Если нужно, могу сделать ещё наглядную таблицу с правилами, где использовать артикли a/an/the и когда их не ставить — очень удобно для запоминания.