Adjective or adverb?

1. (Henry was angry.) Henry shouted at the waiter.

2. (I'm happy sitting here.) I can sit here for hours.

3. (The switch is automatic.) The machine switched itself off .

4. (The debate should be public.) We need to debate the matter .

5. (Everyone was enthusiastic.) Everyone discussed the idea .

6. (We should be reasonable.) Can't we discuss the problem ?

7. (The building has to be secure.) Did you lock all the doors ?

8. This is a part of story about a spy called X. Put it adverbs formed from these adjectives: 

bright, careful, fluent, immediate, patient, punctual, quiet, safe, secret, slow

The journey took a long time because the train traveled so . It was hot, and the sun shone from a clear sky. X could only wait for the journey to end. When the train finally arrived, he had no time to spare, so he took a taxi to the hotel. Y was on time. She arrived at three. No one else knew about the meeting - it was important to meet .

'I had a terrible journey', said Y. 'But luckily the pilot managed to land .'

Her English was good, and she spoke very . X was listening to every word. They were speaking very in case the room was bugged.