I. Combine the following sentences by using “to Infinitive / so as to / in order to” to express purpose.

1. Mary wrote a notice on the board. She wanted to inform her classmates about the change in schedule. 

2. Mr. Green has to get up early this morning. He wants to get to the meeting on time. 

3. My elder brother is studying very hard. He wants to pass the final exam. 

4. People use first-aid. They want to ease the victim‟s pain and anxiety. 

5. You should cool the burns immediately. You want to minimize tissue damage. 

6. I have to go to the bank. I want to change some money. 

7. They got up very early. They wanted to get to the top of the hill before sunrise. 

8. We must keep our gloves on. We don‟t want to get cold. 

9. I am buying paint. I want to repaint the gate of my house.

 10. I am saving money. I want to go to Canada to visit my cousin

I. Use to/ in order to/ so as(not) to + infinitive to combine each pair of sentences

1. Mother entered the room quietly. She didn’t want to wake up her baby.

2. Mary phoned me. She wanted to invite me to the party.

3. We are learning English. We can get a good job.

4. I took off my shoes. I didn’t want to make any noise.

5. My mother needs a tin-opener. She wants to open this bottle.

6. Ken is learning Vietnamese. He wishes to read Kiều.

7. He turned off the lights. He didn’t want to waste electricity.

8. She locked the door. She doesn’t want to be disturbed

9. Some evenings I go to the library. I want to study in peace and quiet.

10. After Jack got home from work, he turned on the TV.He wanted to watch the news

Combine the ideas, using a cause of purpose.

(Dùng in order to, so as to, in order not to, so as not to/ so that/ in other that) để nối câu.

19. This lady came to my house. She explained how to absent yesterday.

-> ................................................................................................................

20. I wrote to John. I didn't come to his house last night.

-> ................................................................................................................

21. They gave him $2. They keep his mouth shut.

-> .................................................................................................................

Đổi những câu sau đay sang mệnh đề, dùng Sothat/ In order that

1/ We hurried to scholl so as not to be late

2/ He climbed the tree in order to get a better view

3/ Some young people like to earn their own living in order to be independent of their parents

4/ We should do morning exercises so as to improve our health

5/ We should take advantage of the scientific achievements of the world so as to develop our national economy

6/ Every people in the world must unite their efforts to maintain anf protect peace

7/ She put on warm clothes so as not to catch old  

8/ He hurried to the station so as not to miss the train 

9/ She lockek in order not to be disturbed

10/ I tried to be on time so as not to make our teacher sad

giúp mk vs mn ơi

I. Combine the following sentences by using “to Infinitive / so as to / in order to” to express purpose.

1. He opened the lion‟s cage. He intended to feed the lion.

2. I took off my shoes. I didn‟t want to make any noise.

3. I sent him out of the room. I didn‟t want him to hear my conversation with Mary.

4. He learned English well. He wanted his mother to be happy.

5. I try to study hard. I want to pass the entrance exam.

6. We worked hard. We wanted to complete the project on time.

7. She got up early. She didn‟t want to miss the first bus.

8. He hurried. He didn‟t want to be late for the interview.

9. Some learners write new words and stick them around their house. They want to learn them at any time.
10. I opened my umbrella. I wanted to protect myself from the rain. 

Combine the ideas, using a cause of purpose.

(Dùng in order to, so as to, in order not to, so as not to/ so that/ in other that) để nối câu.

13. Please be quiet. I want to be able to hear what Sharon is saying.

-> Please ...............................................................................................

14. The little boy pretended to be sick. He wanted to stay home from school.

-> The .....................................................................................................

15. I turned off the TV. I wanted my roommate to study in peace and quiet.

-> .............................................................................................................

Combine the ideas, using a cause of purpose.

(Dùng in order to, so as to, in order not to, so as not to/ so that/ in other that) để nối câu.

22. We raise our hands. We sign where we are.

-> .....................................................................................................................

23. The boy gave her some flowers. He says sorry with her.

-> ......................................................................................................................

24. My boyfriend waits me outside. He wants to make me surprise.

-> .......................................................................................................................

Combine the ideas, using a cause of purpose.

(Dùng in order to, so as to, in order not to, so as not to/ so that/ in other that) để nối câu.

25. Tom takes off his shoes. He doesn't make any noise.

-> ........................................................................................................

26. I hurried. I didn't want to late for meeting her.

-> ........................................................................................................

27. He went to the air port. He wanted to meet his father.

-> ........................................................................................................

Combine the ideas, using a cause of purpose.

(Dùng in order to, so as to, in order not to, so as not to/ so that/ in other that) để nối câu.

16. These students study hard. Because they don't make their teacher disappointed.

-> ..................................................................................................................

17. It's cold today. These children put on their coat. They aren't cold.

-> ..................................................................................................................

18. Jack went to Paris. He visited some friends.

-> ...................................................................................................................