Do you mean lackluster? 
if that is the word then the root word would be luster and the affecting word be lack because you would be lacking luster. does this help?:)
        
             
        
        
        
A sound argument is both
<u>valid and true </u>
<u></u>
~Hope this answers your question!~
 
        
             
        
        
        
Answer:
Hannah meet Jamie in the summer of 2004...
Después es 
Two minutes later he said "the next song is Coldplay. Its called Yellow"...
Después es 
The next day Jamie phoned Hannah and invited her for dinner...
Después es 
One evening in October, Hannah was at work...
Después es 
Suddenly a man ran across the road...
Después es 
Two hours later a police car arrived at Hannah's house... 
Espero que esto te alla ayudado :)