What or That?

Fill the gaps with either ‘what’ or ‘that’.

1.  _______ I need is more time.

2.  Did you hear  _______ I said?

3.  I didn’t know _______ George spoke Italian.

4.  Thanks so much! It’s just _______ I was looking for.

5.  Did you find the book  _______ you were looking for?

6.  _______ he was drunk is no excuse for his behaviour.