3 The monks travelled in a a wooden sailing ship.
b a leather fishing boat.
c three specially designed yachts.

Dear, Alex,

I was so glad to get your letter. I am looking forward to seeing you here. YOu know you are always welcome. 
As for your questions I would like to offer you some places. Do you like music? We will have a concert next month. The band is awesome. They play classic mixed with rock mostly. Are you up to? 
In the evening you can walk a little, see the sightseeing because we have a lot. Different museums are here for you to enjoy as well. 
We usually have quite cold wweather in January. However, this year it seems it will be quite warm. You should bring some warm clothes anyway. It is always useful here. Take a coat and warm trousers. That will be quite enough. 
Wait! boots! dont forget about them. 

I hope to see you soon.

Best regards,
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1.If we heat ice it turns into water.

2.Ice turns into water if we heat it.

3.If you mix the red and yellow colours, you get orange.

4.You get orange, if you mix the red and yellow colours.

5. Yes, these situations are always true.

6.They are facts.

7. What is the time of the situation? - It's Present Simple plus Future Simple.

8.If I go out with my friends tonight, I won't watch the football match on TV

9.I will earn a lot of money If I get that job.

10.If she doesn't hurry, we will miss the bus.

11.Oil floats if you pour it on water.

12.If I have some spare time next weekend, I will go running.

13.Unless you leave now, you are late.

14.If you ask for information politely, people normally help you.

15.If Andrew save enough money, he will buy a new computer.

16.If air become warm, it rises.