Ex. C

1 who 2 where 3 (which/that) 4 whose 5 which 6 (who/that) 7 who 8 where

 Ex. D

1 There is an important football match on television tomorrow, which I don’t want to miss

2 We are having a going-away party for William, who is moving next week

3 We had dinner at Le Cirque, where lots of famous people eat

4 Vivian’s sister, who is a talented singer, visited us yesterday