单选题 First and foremost, we must work out how we are going to get there.
  • A. think
  • B. plan
  • C. write
  • D. check


【正确答案】 B
【答案解析】work out和plan同义：计划、设计；think：想、思索，指的是人的思维能力；write：写、写字；check：检查、核对。