When you introduce Mary Smith to John Jones, you may say ______.
A、“John Jones, this is Mary Smith”
B、“Mr. Jones, may I introduce Mrs. Smith?”
C、Mary Smith, this is John Jones”
D、“Mary Smith, this is Mr. Jones”
【正确答案】：C
【题目解析】：当你把玛丽·史密斯介绍给约翰·琼斯时，你可以说"玛丽·史密斯，这是约翰·琼斯"。
