13..John wrote this letter.
14.They didn’t leave the report here.
15.Why didn’t she sing that song ?
16.Don’t they send the letter ?
17.One drinks a lot of tea in England.
18. He asked me to repair the table.
19.She taught me to do the magic when I was a
boy.

20.Every year Viet Nam exports million of
tons of rice.
21.How many festivals do you celebrate in
your community ?.
22.They built this house more than one
hundred years ago .

1. These flowers are made of silk by Nam.
2. How are the trees taken to school ?
3. I am given some money by my mother every
morning.
4. The floor is not cleaned by the girl.

1/ You mustn’t open this parcel until Calen
comes.
2/ People can recycle tires to make pipes or
floor coverig.
3/ We should use cloth bags instaed of plastic
bags.
4/ Do they teach French in this school?
5/ Do they teach French in this school?
6/ They make a lot of beautiful toys from
recycled plastic.
7/ The workers clean the streets every day.
8/ Do they usually hold the concerts at the
university?

Câu 2: 

Thành viên: Braxin, Achentina, Uraquay, Paraquay, Chilê, Bôlivia

Thành tựu: Tháo rỡ hàng rào thuế quan và tăng cường trao đổi thương mại giữa các quốc gia trong khối đã góp phần làm tăng sự thịnh vượng của các thành viên

Mục tiêu: Tăng cường quan hệ hợp tác thương mại giữa các nước thành viên để thoát khỏi sự lũng đoạn của Hoa Kì