Write when, where, what, why or how in the blanks.

1. The house in which we were living was cold in winter.
The house we were living was cold in winter.

2. Nobody understood the reason for which she was arrested.
Nobody understood the reason she was arrested.

3. Listen carefully to the things that the witness says.
Listen carefully to the witness says.

4. The shelf on which the book had been placed was high.
The shelf the book had been placed was high.

5. Nobody could remember the date on which the course had started.
Nobody could remember the course had started.