1.
break .............. breakage .............
2.
desire .............. desirable .............
3.
conspire .............. conspiracy .............
4.
rehearse .............. rehearsal .............
5.
ideal .............. idealize .............
6.
false .............. falsify .............
7.
plenty .............. plenteous .............
8.
doubt .............. doubtful .............
9.
mouth .............. mouthful .............
10.
sing .............. singer .............
Check your answer in Key Answer