1.Chirstoper Columbus discovered America.
America.....................................................................
2.The teacher gave us a lot of presents.
We.....................................................................
3.His parents made him study hard for the exam.
He.....................................................................
4.Poest have mentioned the Ao dai in poems.
The Ao dai.....................................................................
5.Some fashion designers have printed lines of poetry on the Ao dai.
Lines of poetry.....................................................................
6.Some fashion designers have added the symbols to the Ao dai.
The symbols.....................................................................
7.They have built two department stores this year.
Two department stores.....................................................................
8.No one has seen Mary since 3 o’clock.
Mary.....................................................................
9.Trang has just won the first prize.
The first prize.....................................................................
10.Peple have used the Internet for education in recent years.
The Internet.....................................................................
11.Famous engineers have designed the washing machine.
The washing machine.....................................................................
12.They have just built a new bridge here.
A new bridge.....................................................................
13.The clothing store has just introduced a new style of jeans.
A new style of jeans.....................................................................
14.The fashion designers have just made a new style of jeans.
A new style of jeans.....................................................................
15.You must do this work right away.
This work.....................................................................
16.They will build a new station here.
A new station.....................................................................
17.I think he should decorate his room again.
I think his room.....................................................................
18.You should send this letter before Saturday.
This letter.....................................................................
6. Some fashion designers have added the symbols to the ao dai.
=> The symbols _have been added to the ao dai by some fashion designers___
7. They have built two department stores this year.
=> Two department stores _have been built this year____
8. Trang has just won the first prize
=> The first__prize has just been won by Trang___
9. The Prime Minister will open three more new schools in the town next autumn.
=> Three more new schools _will be opened in the town next autumn by the Prime Minister_
10. She must prepare her lesson carefully.
=> Her lesson _must be prepared carefully by her___
6. The symbols have been added to the ao dai by some fashion designers.
7. Two department stores have been built this year.
8. The first prize has just been won by Trang.
9. Three more new schools will be opened in the town by the Prime Minister next autumn.
10. Her lesson must be prepared carefully.