1.artist -> artitstic

->  A lot of cultural and artistic activities are held in Dalat Flower Festival.

2.are -> is

-> There is a special celebration called Dolls Festival for Japanese girls on March 3rd every year.

3.at -> in

-> We arrived in Bunol, Spain yesterday to take part in La Tomatina Festival.

4.hold ->held

->  La Tomatina is held on the last Wednesday of August every year.

5.bigest -> biggest 

->  Tomorrowland is the worlds biggest dance music festival.

6.most weird ->weiredest

->  One of the weiredest  festivals in the world is Day of the Dead.

7.what->when

->  When do people celebrate New Year around the world?

8.informaions->information

-> Could you please give me some information about the festival?

$#ngthryow$

`1. `A lot of cultural and artist activities are held in Dalat Flower Festival.

⇒Trước danh từ (Activities) là tính từ

⇒artist(n)→artistic(A)

`2.` There are a special celebration called Dolls Festival for Japanese girls on March 3rd every year.

⇒Vì mạo từ a là số ít

⇒are → is

`3.`We arrived at Bunol, Spain yesterday to take part in La Tomatina Festival.

⇒ Xem lại đề

⇒Ko có lỗi sai 

`4.`La Tomatina is hold on the last Wednesday of August every year.

⇒Bị động QKĐ

⇒ is+V3/ed

⇒hold → held

`5`.Tomorrowland is the worlds bigest dance music festival.

⇒ Hai lỗi sai

⇒chủ sở hữu ⇒ world's

⇒bigest → biggest (gấp đôi g)

`6.`  One of the most weird festivals in the world is Day of the Dead.

⇒weird tính từ ngắn

⇒weirdest

`7. `What do people celebrate New Year around the world?

⇒celebrate about

`8.` Could you please give me some informations about the festival?

⇒information là danh từ ko đếm được

⇒informations → information