1Everything that/what they had promised to me was done.
2The research center which/where different spieces and animals are studied is not far from here.
3That/ what they told us about came as a surprise to us all.
4Ascania Nova is a place where/that I’ve never been before.
5I know the girl who/ whose report was the best.
6Those people who/ which are interested in rock –climbing can find the best places there.
1. that 2. where 3. What 4. where 5. whose 6. who