Answer:
Every sample of a given substance has the same properties because a substance has a fixed, uniform composition
1. Wait a minute, please. The concert is going to start soon.
3. OK. At 5 o’clock we will take you outside the shopping center.
4. They probably didn’t give me the job. I had a terrible interview.
5. I’m sorry about losing that book. I will buy you another one next week.
6. Can you call me when you get the news?
7. If it doesn’t rain tomorrow, we don’t have to bring our umbrellas.
Answer: Yes, school is very important
Explanation: