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em cảm ơn.

I  Use a Relative pronoun or relative adverb to combine each pair of sentences below.
1) The student is from Vietnam. She sits next to me.
2) I thanked the woman. This woman had helped me.
3) The professor is excellent. I’m taking his course.
4) The man is my father. I respect his opinions most.
5) She is the most intelligent woman. I have never met this woman.
6) Do you know the music ? It is being played on the radio.
7) I recently went back to Paris. It is still as beautiful as a pearl
8) That man is an artist. I don’t remember the man’s name.
9)  That car belongs to Dr. Clark. Its engine is very good.
10)  This is Mrs. Jones. Her son won the championship.
11)  There is a No Parking sign. I don’t take notice of it.
12)  His letter is full of interesting news. I received it two days ago.
13)  The book is about Africa. It has some wonderful pictures.
14)  My mother still goes in for sports. She is over 45.
15)  The tables are old. They are in the living room. 
16)  The book was torn. I gave it to him. 
17)  Last month my father bought me a book. It was very expensive. 
18)  The knife was dull. She used it to cut bread.  
19)  Do you see these cars? They have just passed by. 
20)  Have you ever ridden the horse? She bought it in Tu Xuyen. 
21) The computer was bought last month. It belonged to my sister. 
22) The house was in bad condition. They built it three centuries ago.
23) The man gave me some screwdrivers(cái tua vít). They were not in good condition. 
24) They showed me the photos. They took them during the trip in Japan. 
25) Do you know the man? He is talking to the principal. 
26) The man is standing in front of the house. He is complaining about the waste. 
27) All the people have disliked him. I have never met them.
28) The book is new. I have just bought it.
29) Anybody may leave. They are tired.
30)  The dictionary was given by my sister. She has just returned from England. 
31)  That is everything. She needs them for her camping trip. 
32)  There’s the man. His wallet was stolen.
33) There are a few things. We can do them.
34) I met the woman. Her husband is the president of the cor­poration.
35)  I come from a country. Its history goes back thousands of years.
36) This is the pupil. You might want to make friends with him. 
37) The professor is excellent. I am taking her course.
38) Mark Twain is an author. You like his books best.