Rewrite the following sentences by using so so that the second sentence

H. ADVERB CLAUSE OF RESULT WITH ‘SO’
Rewrite the following sentences by using “so” so that the second sentence means exactly the same the 
sentence before it.
1. I like playing soccer and that’s why I spend a lot of time on that game.
=> …………………………………………………………………………………………………..
2. Because the weather was cold, they had to cancel their picnic.
=> …………………………………………………………………………………………………..
3. They study very hard and that was why they passed the examination.
=> …………………………………………………………………………………………………..
4. They couldn’t help you because they were not here.
=> …………………………………………………………………………………………………..
5. I can't go out because it is raining.
=> …………………………………………………………………………………………………..
6. This book is interesting enough for me to read many times.
=> …………………………………………………………………………………………………..
7. This car is too old for me to buy.
=> …………………………………………………………………………………………………..
8. He is too young to go to school alone.
=> …………………………………………………………………………………………………..
9. You must be careful because he is very strict.
=> …………………………………………………………………………………………………..
10. The test was so long that I couldn’t finish it in an hour.
=> ……………………………………………………………………