Here are the correct forms of the verbs in parentheses for the exercise:

**Type 1:**
1. If the weather **stays** good next weekend, we **will go** away somewhere.
2. Come on! If we **hurry**, we **will catch** the bus.
3. There **are** big floods every year if the cutting down of trees continues.
4. If there **is** too much litter in the streets, the environment will become polluted.
5. If the sea level **rises**, there will be many floods in many parts of the world.
6. They will be late for the meeting if they **don’t leave** now.
7. If you aren’t careful, you **will drop** the plates.
8. If anyone **phones** me, please tell them I’m out.
9. If crops **are sprayed** with pesticides, they **will be destroyed** by insects in soil.
10. If he **doesn’t use** too much pesticide on vegetables, they will become edible.

**Type 2:**
1. If you **were** a king, what **would you do**?
2. You would feel better if you **took** a short rest.
3. If she **were** two years older, she **would take** part in the contest.
4. They **would be** angry if you didn’t inform them.
5. The teacher **would be** disappointed if I **were** lazy like this.
6. What **would happen** if the moon **disappeared**?
7. If the cats had wings, they **would be** able to fly.
8. If there **weren’t** so many accidents, it **would be** safer.
9. If you broke the traffic law like him, you **would get** a fine.
10. He **would be better off if** his hair **had dried**.