1.The students will go to the Summer Palace if it _____ tomorrow.A.don’t rain B.doesn’t rain C.

问题描述:

1.The students will go to the Summer Palace if it _____ tomorrow.A.don’t rain B.doesn’t rain C.

B 主将从现原则(主句用将来时,从句用一般现在时),然后it作主语用第三人称单数doesn't