问题补充：
The headmaster with his students Hangzhou Paradise Park if it tomorrow.
A. is going to; isn’t rainy
B. are going to; isn’t rainy
C. is going to; won’t rain
D. are going to; doesn’t rain
答案：
(答案→)A. is going to; isn’t rainy
B. are going to; isn’t rainy
C. is going to; won’t rain
D. are going to; doesn’t rain
解析：考查主谓一致和if从句。with连接几个主语时，与第一个保持一致。排除B、D；if条件句用一般现在时代替将来时，排除C。句意“如果不下雨，班主任和同学明天将要去杭州天堂公园。”故选A。
