单选题 (Let's not) waste time on (matters of no important). We have other (vital) problems to (deal with).
  • A. Let's not
  • B. matters of no important
  • C. vital
  • D. deal with


【正确答案】 B
【答案解析】词性错误，应改为importance。介词of后面应接名词或动名词或与名词类似的词，而不能接形容词。