B2 ( Grammar): Relative clauses with prepositions

Student's book Face2Face Advanced.

Explanation+ practice: PREPOSITIONS IN RELATIVE CLAUSES.

Help with grammar: RELATIVE CLAUSES WITH PREPOSITIONS

p. 17. Keys to exercises 3 and 4

2. She should consult the students for whom she is responsible
3. He embarked on a long journey, from which he never returned
4. Mahler is the composer with whom he is always associated
5. I'm impressed by the speed at which he runs
6. The artist eventually finished the picture on which he'd been working

Exercise 4.
2. She has two children, neither of whom look like her.
3. Tim interviewed several people, all of whom were unsuitable
4. She gave me four tops, only one of which I wore
5. There were only two flights that day, both of which were full.
6. I studied German at school, none of which I remember


Also have a look at this power point
 Defining vs non defining relative clauses-advanced from Elena Gómez