1.If weather permit,we will go to the park tomorrow. 如果天气好的话,明天我们去公园. 2.She glares at me if I go near her desk. 我一走近她的办公桌,她就瞪我. 3.If he wins and it's a big if he'll be the first Englishman to win for twenty years. 假使他赢了--是否能赢还是一大疑问--他将是二十年来第一个获胜的英国人. 4.If,you,don't,study,hard, you,will,not,pass,the,exam. 如果你不努力,你考试会不及格的 5.I,will,call,you,if,I,have,time. 有时间我会打电话给你的