1, I’m going out for a short time so you can get supper ready

2, She can’t hope to pass the exam in December so she’ll have to wait till June

3, He is very seriously ill; therefore, doctors have almost given up hope of his recovery

4, Her mother was very sick so she couldn’t come to class

5, Daisy is very nice so all her friends love her very much

6, The rain began to fall; however, we went home

7, Hoa didn’t study for the exam but Lan study for the exam

8, She is still not good at maths; therefore, she cannot be the best student in her class

9, Advertisers often say that their products are the best; however, the real quality is not as good as it is advertised

10, It began to rain so I opened my umbrella

11, You could fly via Vienna; however, it isn’t the only way

12, The boy has chosen to do an MBA programme in Australia; therefore, I think you should let him go

13, I didn’t have an umbrella; however, I didn’t get wet because I was wearing a raincoat

14, You are studious but your friend is lazy

15, He is very popular so everybody likes him

16, It was already 6 PM so we closed the office and went home