Would you check my sentences about negation?

Hello, native English speakers,
Would you please check my sentences about negation?
Q1
1. Not everyone in this class can speak English fluently.

2. Not all the students in this school are from Japan.

3. I don't always come here with my wife. [wife = 妻]

4. Not everyone knows about you. (注：every～は単数扱いなので三単現のｓが付く)

5. I haven't read both books. [both = 両方]

6. I am not always busy on Mondays. [busy = 忙しい(発音注意！)]

7. Rich people are not always happy. [rich = お金持ちの]

8. My uncle does not drive his car every day.

9. Not all of the books are mine.

10. Not all the food we eat is produced in Japan. [produce = 生産する](we eatはfoodに係る)

Q2 Translate into English.
1) 日本のすべての人がお金持ちというわけではありません。[Not everyoneを用いて]
Not everyone in Japan is rich.

2) このクラスのすべての生徒が泳げるわけではありません。[Not all を用いて]
Not all the students in this class can swim.

3) その国の全ての人が貧しいわけではありません。(貧しい＝ poor)
Not everyone (/Not all the people) in the/that country is poor.

4) 私は，いつもコーヒー(coffee)を飲むわけではない。
I don't always drink coffee.

All fine, except some clarification may be necessary on this one:

5. I haven't read both books. [both = 両方]

This would mean that there are two books and I have read one of them, but not the other.

If you mean zero books have been read, then use "I haven't read either book."

Thank you for your ongoing help, Mike. You've been so helpful. I appreciate your great help.

Thank you for your ongoing help, Mike. You've been so helpful. I appreciate your great help.