Đáp án:

1  How is your son, who had an operation last night?

2  I met Mary, who asked me to give you this

3  My father, whose words you can rely on, is always willing to help you.

4  Her latest novel, which I read it on holiday, is really good

5  Nam, whose house is near mine, is an experienced doctor

6  We went to the Riverside Restaurant, where I once had lunch with Henry

7 My aunt, whose first job was filling shelves in a supermarket, is now a manager of a department store

8  Julia's father, who is over 80, has just come back from a skiing holiday

9 This is Ms Jones, whose son won the scholarship last year.

10  Romeo and Juliet, whose their parents hated each other, were loyers

2. Non- defining relative clauses.

1. How is your son, who had an operation last night?

2. I met Mary, who asked me to give you this.

3. My father, whose words you can rely on, is always willing to help you. 

4. Her latest novel, which I read it on holiday, is really good. 

5. Nam, whose house is near mine, is an experienced doctor.

6. We went to the Riverside Restaurant, where I once had lunch with Henry. 

7. My aunt, whose first job was filling shelves in a supermarket, is now a manager of a department store.

8. Julia's father, who is over 80, has just come back from a skiing holiday.

9. This is Ms Jones, whose son won the scholarship last year. 

10. Romeo and Juliet, whose their parents hated each other, were loyers.