231. The film about which they are talking is fantastic

232. She’s the nurse to whom we gave the flowers
233.The man to whom we are talking was our new history teacher .
234. The teacher with whom we studied last year is Mr Pike
235. We are very interested in the problem which has been discussed in class .
236. Lung cancer of which million of people died is very dangerous
237. I like standing at the window from which I can see the park
238. The woman to whom you gave place on the bus lives next door to me
239. The examination in which I was successful lasted 2 days
240. This is the result of our work with which I'm pleased
241. Mr Brown is the man to whom I'm responsible for my work
242. This snake of which I'm afraid is dangerous
243. There are a number of factors which we have no control over
244. The picture at which she was looking was beautiful
245. That’s the woman to whom John used to be married
246. My sister has 2 daughters whom I often have to look after
247. This is the book which I’m looking for
248. The girl with whom the boy fell in love left him after a few weeks .
Chúc bạn học tốt^^

231. The film is fantastic. They are talking about it. 

`=>` The film about which they are talking is fantastic

232. She’s the nurse. We gave the flowers to her. 

`=>` She’s the nurse to whom we gave the flowers
233. We are speaking to the man. The man was our new history teacher. 

`=>` The man to whom we are talking was our new history teacher.
234. The teacher is Mr. Pike. We studied with him last year. 

`=>` 234. The teacher with whom we studied last year is Mr Pike
235. We are very interested in the problem. It has been discussed in class. 

`=>` We are very interested in the problem which has been discussed in class.
236. Lung cancer is very dangerous. Million of people died of it. 

`=>` Lung cancer of which millions of people died is very dangerous.
237. I like standing at the window. I can see the park from the window. 

`=>` I like standing at the window from which I can see the park.
238. The woman lives next door to me. You gave place to her on the bus.

`=>` The woman to whom you gave place on the bus lives next door to me.
239. The examination lasted days. I was successful in this exams. 

`=>` The examination in which I was successful lasted 2 days.
240. This is the result of our work. I’m pleased with it. 

`=>` This is the result of our work with which I'm pleased.
241. Mr Brown is the man. I’m responsible to him for my work. 

`=>` Mr. Brown is the man to whom I'm responsible for my work. 
242. This snake is dangerous. I’m afraid of it. 

`=>` This snake of which I'm afraid is dangerous.
243. There are a number of factors. We have no control over them. 

`=>` There are a number of factors which we have no control over.
244. The picture was beautiful. She was looking at it. 

`=>` The picture at which she was looking was beautiful.
245. That’s the woman. John used to be married to her. 

`=>` That’s the woman to whom John used to be married. 

246. My sister has daughters. I often have to look after them. 

`=>` My sister has 2 daughters whom I often have to look after.

247. This is the book. I’m looking for it. 

`=>` This is the book which I’m looking for.
248. The boy fell in love with the girl. She left him after a few weeks.

`=>` The girl with whom the boy fell in love left him after a few weeks.