1. If it is late, then I have to go home
2. If I was expecting my friend to come, then I couldn't go to the cinema with you
3. If math is his favorite subject and he works a lot in it, then he always gets top marks in maths
4. If a hadn't dictionary, then I will not translate the article
5. If the night is pitch dark, then we will lose our way
6. If the box is so heavy that I can't carry it, then I will take a taxi
7, If travelers haven't cameras with them, then they will not be able to take photos of the beautiful scenery
8. If there is no sugar left, then we will have to go to the shop late in the evening
9. If the house is very nice and comfortable but it is situated close to a chemical plant and the air around it is very bad, then it is not very good for living
10. If he is an excellent specialist but I am not acquainted with him, then I cannot ask his advice
