Ответ:
1. This is .a.. pencil. The pencil is red.
2. She is .a.. teacher. She is our --.. teacher of English.
3. There are .---.. many flowers in your garden. The flowers are beautiful.
4. Did you write .a.. plan? Give me your .--.. plan, please.
5 ..The.. Black Sea is in .the.. South of Russia.
6. This is .---.. Nick. Не works as .an.
engineer. Не is .a.. good engineer.
7. There are .---.. some schools in our street. The.. schools are new.
8. In summer ...the sky is blue and ...the sun shines brightly.
9 ...The. Petrovs are very friendly.
1 O. This is .---.. Ann's book.
11. ---...Winter begins in December.
12. What ..a fine day it is today!
13 --History and-- Computer Science were -- my favourite subjects at school.
14. I don't know the... way to the... station.
15. Usually 1 get up at ..-- 7 o'clock in ...the morning.
16. Will you have ...a cup of ...--- tea?
17 .... Warsaw is ...the capital of Poland.
18. This is ...a book, ...the book is very interesting.
19. Do you see ...the sun in ...the sky today?
20. I went to ...the Smirnovs, but they were not at ...--- home.