`1.`Tet is the biggest festival in Viet Nam.

`=>`Dẫn chứng : Tet is the biggest festival in Viet Nam. ( Câu 1 đoạn 1 )

`2.`They make many tasty traditional foods.

`=>`Dẫn chứng : To celebrate Tet, Vietnamese people make

many tasty traditional foods.

`3.`Members of family gather under the same roof at Tet.

`=>`Dẫn chứng : It is the yearly occasion on which members of family gather under the same roof to celebrate seasonal renewal of nature.

`4.`No, it isn't.

`=>`Dẫn chứng : Tet is a great time of joy and entertainment, not of working.

`5.`Because Tet is the only occasion on which every Vietnamese, old and young, rich and poor relax to recover the lost strength, so that they may be strong enough to face the New Year wih its challenges.

`=>`Dẫn chứng : It is the only occasion on which every Vietnamese, old and young, rich and poor relax, "at well and sleep well" to recover the lost strength, so that they may be strong enough to face the New Year wih its challenges.

`1.` The biggest festival in Viet Nam is Tet.

Dẫn chứng ở câu đầu

`2.` They often make many tasty traditional food.

Dẫn chứng ở câu thứ 2

`3.` Members of family often gather under the roof at Tet

Dẫn chứng ở câu thứ 5 

`4.` No, it isn't

Dẫn chứng ở câu thứ 6

`5.` Because it is the only occasion on which every Vietnamese, old and younh, rich and poor relax

Dẫn chứng ở câu thứ 7