1. ..... if my parents still lived in Nha Trang then.

2. ..... expensive that she can not afford/buy it.

3. ..... sings the most beautifully in my class.

4. ..... seen him since I was a student.

5. ..... was careless, he fell down.

6. ..... smoking 10 years ago.

7. ..... he is not young/ old, he runs 5 kilometres every day.

8. ..... in my group is prettier than Mary.

9. ..... Hung that there was a meeting in that room the next day/ following day.

10. ..... Unless he knew the way to the stadium, he could ask me.

Chúc bạn học tốt!!

5.Always wear goggles as a protect for your eyes when using the machines.

6.Please remove the document with the glass of the photocopier.

7.Wearing a band over the wrist allows players to play safely.

15.She didn't play volleyball last week and we so bored.

Study good!!!