a)
1 If we recycle, we will save natural resources
2 If you aren't careful, You will fall over the rocks
3 If you work too much, you will feel tired
4 If you are careless, you'll break the vase
5 If Ha works hard, she can pass the exam
b)
1 If I knew the answer, I could give it to you
2 If I were you, I would apply for the job
3 If I were you, I would pay a visit to Nha Rong Harbor
4 If it weren't for his pension, he would starve
5 If I were you, I would go to school by bus





