Odpowiedź:
1 Betty felt nervous because she hadn't been in hospital before.
2 Sue had waited nearly an hour before the doctor saw her.
3 I had forgotten to take my medicine so I began to feel dizzy.
4 By the time Mandy fell asleep she had finished reading her book on acupuncture.
5 Tony came out in a rash, probably because he had eaten nuts.
6 Before I bought a new pair of glasses I had had my eyes tested at the optician's.