"   （）   your meeting is!" he offered them his sincere congratulations.

题目解析 答案：B 解析：这道题考察的是感叹句的用法。句子中缺少一个感叹词来表达对"your meeting"的赞美之情。"How a great success"和"How great success"都是感叹句的形式，但正确的表达是"What a great success"，表示"多么成功的会议！"。