Read the theory box. Complete the gaps with the adjective derived from the words in brackets.
-ing adjectives describe what something is/was like. The ending was surprising. (What was the ending like? Surprising. )
-ed adjectives describe how someone feels/felt. We were surprised. (How did we feel? Surprised. )
1 They were very in the expedition. (interest)
2 It was an experience. (amaze)
3 They didn't reach the summit, but they were
with their progress. (SATISFY)
4 Were you when the shark approached the boat? (FRIGHTEN)