1,Reduce relative clauses to phrases:

a,The man who is standing there is a clown.

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

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

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

e,The students dont know how to do the exercises which were given by the teacher yesterday.

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

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

h,All the astronauts who are orbiting the earth in space capsules are weightless.

i,All students who dont hand in their papers will fail in the exam.

j,I saw many houses that were destroyed by the storm.

k,The street which leads to the school is very wide.

l,The system which is used here is very successful.

m,Mr Jackson, who teaches my son, is my neighbour.

n,Trains which leave from this station take an hour to get to London.

o,The candidates who are sitting for the exam are all from Vietnam.

p,We are driving on the road which was built in 1980.

q,Customers who complain about the service should see the manager.

r,The city which was destroyed during the war has now been rebuilt.

s,My brother, who met you yesterday, works for a big firm.

t,The vegetables which are sold in this shop are grown without chemicals.

giup minh nhe minh dang can gap lam.

3.Replace the relative clauses by using infinitives or articiples:

a, I have a lot of work that i must do.

b,He was the first man who arrived at the party.

c,Luggage islelf unattended will be taken.

d,The nurse who is looking after my aunt is very kind to her.

e,The captain was the last man who left the ship.

f,He is always the first student who comes to class.

g,Passengers who travel by plane should by the ticketsin advance.

h,Those are interesting books that you should keep carefully.

i,Group is the one that wins the competition.

j,The fence which surrounds his house is made of wood.

1,Tim so nguyen n de:

103n²+121n+70 chia het cho n-1

2,Tim du cua phep chia:

a, x+x³+x⁹+x²⁷+x²⁴³cho x-1

b,(x+1).(x+3).(x+5).(x+7)+1999 cho x²+8x+12

1,Cho A=x^4+y^4+z^4-2x^2y^2-2x^2z^2-2y^2z^2

a,Phân tích A thành tích

b,Cho x,y,z là đo dài 3 cạnh tam giác.C/m: A<0

II- Use a relative pronoun/ adverb to combine each pair of the sentences below. 1. You sent me a present. Thank you very much for it.
2. Romeo and Juliet were lovers. Their parents hated each other.
3. This is Mrs. Jones. Her son won the championship last year.
4. This is the house. We often stay in this house in the summer.
5. That was the time. He managed the enterprise at that time.
6. I was sitting in a chair. It suddenly collapsed.
7. This is the story of a man. His wife suddenly loses her memory.
8. Charlie Chaplin died in 1977. His films amused millions of people in the world.

by Doan Manh Hieu doanmanh.hieu@yahoo.com

9. Please post these letters. I wrote them this morning.
10. The building is the church. Its tower can be seen from afar.
11. I’ll show you the second-hand bookshop. You can find valuable books in this shop.
12. The police want to know the hotel. Mr. Bush stayed at this hotel two weeks ago. 13. The reasons are basic grammatical ones. I’m scolded by the teacher fro these reasons.
14. I have not decided the day. I’ll go to London on that day.
15. The airport is the most modern one. We are going to arrive at this airport.
16. She doesn’t want to speak to the cause. She divorced her husband for this cause. 17. He doesn’t want to sell the house. He was born in this house.
18. The teacher is Mr. Pike. We studied with him last year.
19. The problem has been discussed in class. We are very interested in it
20. Many diseases are no longer dangerous. People died of them years ago.
21. Do you see my pen? I have just written the lesson with it.
22. I like standing at the windows. I can see the park from this window.
23. The boy is my cousin. You made fun of him
24. This is rare opportunity. You should take advantage of it to get a better job.
25. This matter is of great importance. You should pay attention.