So or so that

​Hành động – Mục đích/Nguyên nhân

​The doctor put a cast on her arm.

Why did the doctor put the girl’s arm in a cast?

​--> The doctor put her hand in a cast so that her bones could heal.

​--> He put the cast on tightly so that her arm wouldn’t move around

https://portlandenglish.edu/​​

​Hành động – Kết quả

​These students are studying English in the U.S.

​What is the result of their studying English in the U.S.? What are the effects of their being here?

​--> They are living in an English-speaking country, so they hear English every day.

​--> They are students, so they have homework and must practice.

​

https://portlandenglish.edu/​

​Chỉ hành động - mục đích, nguyên nhân

​These students are studying English in the U.S.

Why are these students studying English? What is their purpose?

​--> One is studying English so that he can go to an American university.

​--> Another is studying English so that she can travel.

--> A third is studying English so that she can get a better job.

https://portlandenglish.edu/​

​Phân biệt

​1, I password protect my phone ____ no one can use it without my permission.

​2, ​It was very expensive ____ I didn't buy it.

​3, I posted it a couple of days ago, ____ they should have received it by now.​

4, It was raining, ____ I took an umbrella with me.​

5, I wrote the number down ____ I wouldn't forget it.​