Use the proper form. Nouns: Look! Two (aircraft) are flying in the dark sky Выберите один ответ:

a. brothers-in-law, outskirts 

b. aircraft

c. grandmother's, is (was)

d. is, it, is

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b

Объяснение:

Look! Two aircraft are flying in the dark sky

ответ: b. aircraft

Объяснение:

1. this picture is always admired by people.

2. leg in an accident was hurt by him.

3. this box has been opened   for the last hundreds years.

4.   the tower of london as a prison was used by people.

5. this bridhe was built last year.

1. is your house had break?

2. is he your best friend?

3.  is here had an old castle?

4.  is this castle visited by tourists?

5.  when to you has said the truth?

6.  who has painted a picture ''the sunflower''?

7.  is a space examining by astronauts?

8.  what to them has still offered?

9. is thief has arrest by this police officer?

10.  is a window maybe be open?

11. is this work can be done?

12.  is this writer writing a new book?

13. is he known, as a talented musician?

14. why they wear a funny clothes?

15. which language used in thailand?

16.  is a medical treatment for a cancer can be opened?

17. is he has won?

18.  is climate changing?

19.  why the public needs to be warned about it?

20. is this brilliant the biggest in the world?

21.  do you like, when shout on you or talked about you?