Đáp án + giải thích các bước giải:

1. When is Christmas held? ( Lễ giáng sinh được tổ chức khi nào? )

$\Rightarrow$ It's held on 25 December.

Dẫn chứng: My favorite time of the year is Christmas, which is on 25 December.

2. What do they do before Christmas? ( Họ làm gì trước lễ Giáng sinh? )

$\Rightarrow$ They send a lot of cards to their friends and family, decorate big tree with lights and other things.

Dẫn chứng : In the middle of December we send a lot of cards to our friends and family, here and abroad. Then we get a big tree and decorate it with lights and other things.

3 What do they do on Christmas Day? ( Họ làm gì vào ngày lễ Giáng sinh? )

$\Rightarrow$ They give each other presents, have one enormous meal with turkey, and after that, they have Christmas pudding.

Dẫn chứng : On Christmas Day, we give each other presents. We have one enormous meal with turkey, and after that, we have Christmas pudding.

1. When is Christmas celebrated?
Christmas is celebrated on December 25th 

2.What do they do before Christmas?
In mid-December, They send a lot of letters to our friends and family, here and out. 

3.3 What do they do on Christmas holidays?
On Christmas day, they give each other gifts.