I.
1. We will get there soon after we send him a message.
2. I would like to finish it before it gets dark.
3. You'll tidy up the house while I'm doing the shopping.
4. He'll not regret it until she moves away.
5. Can you water the flowers when we leave the house?
6. We will go on a trip as soon as they repair our car.
7. Come to see me whenever you feel lonely.
8. I will open the bottle the moment I find the opener.
9. We will go to the stadium together when he finishes his work.
10. I'll come round after I finish my lesson by noon.
II.
1. Although it was a nice sunny day, there were very few people at the beach.
2. Despite the fact that she is not prepared for the test, she has to do it.
3. In spite of having no qualifications for it, he got the job.
4. Although I told her all the truth, she didn't believe me.
5. Even if it might be cold, we'll still go for a walk.
6. In spite of not having much time, they came to visit us.
7. Though I like the car you have recommended very much, I can't buy it.
8. Even though he arrived later, he finished work earlier than the others.