waihaiss

1. 你只要打个电话就知道她是否会来了。 you only have to call her in order to kown weather she'll come or not  
2. 我只要去问问老师就能解决这个问题了。i only have to ask teacher in order to solve the  problem
3. 你只要买一些报纸就能找到你需要的广告了。you only have to get some newspaper in order to find advertisements  you need  .