用英语如果造句

They could have caught up the train if they came earlier, however, they didn't make it.假如他们早点来的话还能赶上火车，但结果是他们没有做到。

if you doN`T work hard the result is you will fail in the exam如果你不好好学习那么结果是考试会考砸

If I made any progress,it all contribute to...,2,All my progress, if there is any, owes to,1,

If I needn't go to school tomorrow，I will be very happy.If I pick up a large amount of money in the street，I will be very happy.If I can travel around the world，I will be very happy.If I can visit the moon，I will be very happy.