RÚT GỌN MỆNH ĐỀ QUAN HỆ

The man who is standing there is a clown.

(a)  

Benzene, which was discovered by Faraday, became the starting point in the manufacture of many dyes, perfumes and explosives.

(a)  

My grandmother, who is old and sick, never goes out of the house.

(a)  

The student don't know how to do exercise which were given by the teacher yesterday.

(a)  

The diagrams which were made by young Faraday were sent to Sir Humphry Davy at the end of 1812.

(a)  

The gentleman who lives next door to me is a well-known orator

(a)  

The envelop which lies on the table has no stamp on it.

(a)  

All the astronauts who are orbiting the earth in space capsules are weightless

(a)  

All students don't hand in their papers will fail in the exam

(a)  

I saw many houses that were destroyed by the storm

(a)