Mr Reagan was in Las Vegas（ ）.
A、complaining about Jim Santini
B、campaigning for Republican candidate Jim Santini
C、accompanying Republican candidate Jim Santini
D、campaigning for Democrat Harry Reed
【正确答案】：B
【题目解析】：听力原文：Mr. Reagan was in Las Vegas campaigning for Republican candidate, Jim Santini, who is running behind Democrat, Harry Reed.本题考查里根先生在拉斯维加斯做了什么。由听力原文：里根当时在拉斯维加斯为共和党候选人吉姆·桑蒂尼(Jim Santini)助选，桑蒂尼目前在民主党候选人哈里·里德(Harry Reed)之后。可知B项为共和党候选人吉姆·桑蒂尼助选符合。
