Adverb or adjective?

1 sarcastisch: The teacher spoke very .... in class this morning. 2 comfortabel: You can't sit as .... in an American car as in a Rolls Royce. 3 goed: Our plan worked out very ..... 4 veilig: The astronauts have landed .... on the moon. 5 geduldig, hard: John Smith worked ..... and ....... for three years. 6 verkeerd: Don't correct me every time I say something .... 7 duidelijk, vlot: Liz speaks quite .. and ... 8 slecht: The shopping facilities in little villages can be very ..... 9 strikt: Don't stick to the rules too .... 10 ironisch: The end of the book is very ....... 11 zuur: I'm afraid the milk has gone .... 12 snel: The time went by quite (2 possibilities) ....... 13 gelukkig: He didn't appear too ....., did he? 14 hard: You don't work as .... as you used to. 15 goed: The relationship between us and our teacher is very ......... 16 echt: The speaker gave us some ...... new ideas. 17 moedig: The small boy looked ..... into the lion's mouth. 18 gelukkig: ..... (2 possibilities) for you, the teacher hasn't noticed your absence. 19 vroeg: Our visitors arrived ..... 20 onmiddellijk: Come back ...... after the lesson. 21 ongeduldig: Why do you always look so ...............? 22 bevestigend: I think I can answer your question........ 23 volledig: After his accident he started a ... new life. 24 onzeker: We remained ....... of the results of our efforts. 25 nauwelijks: I can ...... believe what you tell me.