Can i stay at home tomorrow?Yes,you can if it (snows.)括号中不是应

Can you tell me if it snows tomorrow? If it ______________ tomorrow, I would stay at home watching --What will you do if it ___ tomorrow?--I'll stay at home an if it rains tomorrow,i will stay at home和if it rained,i woul if it rained tomorrow .i should stay at home.if it rains ,i 英语中If的用法问题If it rains tomorrow , I will stay at home 这句话是对的, 在if it rains tomorrow,i will stay at home 这类句中,怎么判断哪个是主句,哪个是 If it _______ tomorrow,we will stay at home. He will stay at home if it ______(rain)tomorrow. Stay at home tomorrow if it is rains.为什么不能说成是Stay at home to If it_(rain)tomorrow,I will stay at home. （ ） it rain tomorrow ,I'd stay at home .