The following sentences are gramatically wrong. Can you correct them?

1. The woman to who he is married is from Egypt.

2. She is the same woman which we saw in the shop.

3. This jacket, that I bought last week, is very expensive.

4. The kangaroo is an animal who lives in Australia.

5. Jack, that is from Canada, speaks English and French.

6. His laptop, that he bought last month, was very expensive.

7. That's the actor whom name I can't remember.

8. John, that is eighteen, will start driving lessons.