put the verbs into the conditional type 1:
1. If we ____________( plant) more trees, the air _________( be) fresher.
2. If the soil___________( be) polluted, the vegetables____________( die).
3. Unless he_________(call) me, I ___________ (stay) at home.
4. the weather is not very good. It minght ______________(rain) this afternoon.
5. If a student__________(recycle) the papers, he _____________(save) energy.
6. I ___________( not clean) my room for a long time.
1. If we plant( plant) more trees, the air will be( be) fresher.
2. If the soil were( be) polluted, the vegetables would die( die).
3. Unless he calls(call) me, I will stay(stay) at home.
4. the weather is not very good. It minght rain(rain) this afternoon.
5. If a student recycles(recycle) the papers, he saves(save) energy.
6. I haven't clean( not clean) my room for a long time.
