单选题 Monkeys ale excellent climbers, and most are ______ tree dwellers.
  • A. often
  • B. primarily
  • C. rarely
  • D. savagely
【正确答案】 B
【答案解析】[解析] 各项的意思为：often常常；primarily起初；rarely很少地；savagely野蛮地。所以，本题选B。