根据课文内容判断正“T”误“F”
Cal was equipped with weapons and he was danger-ous.  (    )
Cal's father wasn't friendly to David at first. （ )
After hearing David play the violin, Cal's father's attitude towards him changed. (    )
Over the dinner, they talked a lot about Cal. (    )
Theold man tried to persuade Cal to give himself up, but failed. (    )