14 . He is sad because his exam is ( success) UNSUCCESSFUL
15 . I didn't know his ( important) IMPORTANCE
16 . I believe you. You are ( truth) TRUTHFULL
17 . Steam engine is a important (invent) INVENTION. The ( invent) INVENTOR is Jame Watt
18 . My father is a ( science) SCIENTIST
19 . He has a lot of ( music) MUSICAL intrusments
20 . Today our (live) LIFE becomes more comfortable