I don't know if he ________ tomorrow．If he ________, I'll meet him．

1. Don't talk only. I need all of you to find some _______ to the problems we will
    have to face tomorrow.
2. We must keep the _______ between you and me. Don't let others know it.
3. English is very important. I have ______ the importance of learning English well.
4. The teacher was angry with him because he always made the same ________.
5. As a middle school student, Tom is old enough to look after _______.
6. It doesn't ______ if you don't understand every word in reading English magazines.
7. In our lives, everyone will meet many chances and _______.
8. We have only one earth. Protecting the earth is our _______.