đề bài : reduce relative clause

giải giúp mình vs ạ

`20.` He is the most intelligent person doing this exercise.
`21.` Television, attracting millions of viewers in the world, is very popular nowadays.
`22.` The last tiger, caught two days before, was sent to the zoo.
`23.` Be sure to follow the instructions given at the top of the page.
`24.` They live in the house built in 1890.
`25.` The papers on the table belong to Patrica.
`26.` The man talking to the policeman is my uncle.
`27.` The number of students counted is quite high.
`28.` George is the man chosen to represent the committee at the convention.
`29.` The clowns making our sister laugh a lot were rather short.
`30.` The dog playing with a ball is a big one.
`31.` Neil Armstrong was the first man to walk on the moon.
`32.` Here are some accounts you must check.
`33.` I've got a bottle of wine but I haven't got anything to open it with.
`34.` I have some letters to write.
`35.` He simply loves parties. He is always the first person arriving and the last person leaving.
`36.` The Queen Elizabeth is the largest ship built on the Clyde.
`37.` My grandmother, old and sick, never goes out of the house.
`38.` Kuala Lumpur, the capital city of Malaysia, is a major trade center in Southeast Asia.
`39.` Emma Thompson is the most famous actress to appear on stage here.
`40.` We have some picture books children can read.

`-` Rút gọn mệnh đề quan hệ bằng cách lược bỏ đại từ.

`-` Rút gọn mệnh đề quan hệ bằng V-ing.

`-` Rút gọn mệnh đề quan hệ bằng V-ed/ V3.

`-` Rút gọn mệnh đề quan hệ bằng to + V.

`-` Rút gọn mệnh đề quan hệ bằng cụm danh từ.