【题目】When Richard said，“You are much more agreeable and prettier now“，Joan's face turned red at the unexpected_____.
A.command
B.comparison
C.compliment
D.contribution

【答案】C
【解析】句意：当 Richard说：”你现在更加和蔼可亲和漂亮了”，Joan听到这出乎意料的赞美脸红了。A.command“命令，要求”；B.comparison“比较”；C.compliment“恭维，赞美”；D.contribution“贡献”。根据句意，选C。