单选题 His manner was so pleasant that Bolla felt at ______ with him at once.
  • [A] peace
  • [B] large
  • [C] ease
  • [D] best


【正确答案】 C
【答案解析】[解析] 四个选项都可以与at搭配，其中at peace意为“和平地”；at large意为“自由地，大体地”；at ease意为“不拘束”，符合题意，故[C]为答案；at best意为“至多”。