1 . an ____ir______resistible temptation
2 . an ____im__possible plam
3 . an ____in_____accurate calculation
4 . an ___im____mature young man
5 . an ____im__ moral action
6 . an ____in______ convenient arrangement
7 . an _ill_____ logical answer
8 . an _____ir________responsible boy
9 . an ______in_____________patient motorist
10 . an ______ir___________secure felling