Relative clauses, identifying/non identifying

Ответ:

13

2 , who was the school‘s headmistress fir ten years, ( NI can’t be omitted)

3 which /that ( I can be omitted)

4 who ( NI can’t be omitted)

5 , who was in my class at school, (NI can’t be omitted)

6 which /that ( I can be omitted)

7 which /that ( I can be omitted)

8 which/that ( I can’t be omitted)

9 whose ( I can’t be omitted)

10 , which I like very much, ( NI can’t be omitted)

11 who/that ( I can’t be omitted)

12 , who/whom I don’t know very well , ( NI can’t be omitted)

13 who/that ( I can be omitted)

15

A

2 who/that -can’t be omitted

3 where -can’t be omitted

B

1 whose- can’t be omitted

2 why/that- can be omitted

3 who/that -can’t be omitted

4 when/that -can be omitted

5 when/that -can be omitted

C

1 who/that -can’t be omitted

2 which/that -can be omitted

3 where -can’t be omitted

4 where - can’t be omitted

D

1 when/that -can be omitted

2 which /that -can be omitted

3 whom/who /that -can be omitted

4 which -can’t be omitted

5 why/that -can be omitted

6 why /that -can be omitted

7 who/that -can’t be omitted

E

1 who -can’t be omitted

2 whose -can’t be omitted

3 which/that -can’t be omitted

4 where can’t be omitted