11. 

-> Although the exercise is long, I hope it is not boring. ( although + clause )

12.

-> Although the weather is bad, we went out.

13. 

-> Despite the cloudy sky, we took many pictures. ( despite + cụm N / N )

14. 

-> In spite of being on a diet, he ate the chocolate cake. ( in spite of + cụm N / N)

14. 

-> Though the weather is wet, we had to cancel the picnic.

15. 

-> He passed the exam successfully because he was working very hard. (because + clause)

16. 

-> Although he has poor-living condition, he tried his best to win a place in uni. ( Tương tự các câu trên )

17. 

-> The train was late for a few hours because it rained heavily. ( Tương tự )

18. 

-> Though we started early, we went to school late.