Choose the correct form

A: Have you read that new book yet?
B: Only some of it. It’s very ____.
1. bored
2. boring
A: Did you enjoy your holiday?
B: Oh, yes. It was very ____.
1. relaxed
2. relaxing
A: I'm going to a lecture tonight. Do you want to come?
B: No thanks. I'm not ____ in the subject.
1. Interested
2. interesting
A: Did you hurt yourself when you fell?
B: No, but it was very ____.
1. embarrassed
2. embarrassing
A: Shall I turn off the lights?
B: No. I'm ____ of the dark.
1. frightened
2. frightening
A: Was Mother upset when you broke her vase?
B: Not really, but she was very ____.
1. annoyed
2. annoying
A: How do you feel today?
B: I still feel very ____.
1. tired
2. tiring
A: I haven't seen Mr. Green for several days.
B: Neither have I. It's a bit ____.
1. worried
2. worrying