1．Many children have dropped out of school because of ____________(贫穷)．
答案：poverty
2．After the ____________(改革) of teaching methods，the students show greater interest in class.
答案：reform
3．More ____________(证据) is needed for the police to prove the young man guilty.
答案：evidence
4．A youth was seriously injured in a shooting ____________(事件) on Saturday night.
答案：incident
5．It took the couple several years of hard work to pay off all their ____________(债务)．
答案：debts
