`1` Yes, it was

`-` Dẫn chứng : There is no one who has not heard of Walt Disney, one of the most famous cartoon producers in the twentieth century

`2` It appeared in a `1928` film called "Steamboat Willie"

`-` Dẫn chứng : Perhaps, his most well known cartoon character is Mickey Mouse, first appeared in a 1928 film called "Steamboat Willie"

`3` His brother did

`-` Dẫn chứng : By the early years of this century, he had already started producing some cartoons with his brother, who never managed to become as famous as Walt Disney

`4` Snow White and the Seven Dwarfts is

`-` Dẫn chứng : One of the most popular cartoons of all time is "Snow White and Seven Dwarfs", which is the first full-length cartoon in history of the cinema

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VIII.

1. Yes, it was

-> Thông tin: There is possibly no one who has not heard of Walt Disney, one of the most famous cartoon producers in the twentieth century. (Câu thứ 1 đoạn thứ 1)

2. His most well-known cartoon character appeared in a 1928 film called ''Steamboat Willie''.

-> Thông tin: Perhaps his most well-known cartoon character is Mickey Mouse, first appeared in a 1928 film called ''Steamboat Willie'' (Câu thứ 1 đoạn thứ 2)

3. His brother never managed to become as famous as Walt Disney

-> Thông tin: By the early years of this century, he had already started producing some cartoons with his brother, who never managed to become as famous as Walt Disney (Câu cuối cùng đoạn thứ 1)

4. Snow White and the Seven Dwarfts is the most well-known cartoons of all time ''Steamboat Willie'' or ''Snow White and the Seven Dwarfs''

-> Thông tin: One of the most popular cartoons of all time is "Snow White and Seven Dwarfs", which is the first full-length cartoon in history of the cinema (Câu cuối cùng đoạn thứ 2)

Chúc bạn học tốt.