36. I think you should spend at least 1 hour every day to practice speaking English in order to communicate fluently.

=> If I practice speaking English for at least 1 hour every day, I will be able to communicate fluently.

37. This English course is very helpful for me. The course focuses on developing communicative skills. (that)

=> This English course that focuses on developing communicative skills is very helpful for me.

38. I haven’t decided to buy that expensive computer or not.

=> I am considering whether to buy that expensive computer or not.

39. Although Nam is very good with numbers, I still think that he is not suitable for a job as an accountant. (fact)

=> In spite of the fact that Nam is very good with numbers, I still think that he is not suitable for a job as an accountant.

40. Natalie studied physics at the University of California. Then she became a staff writer for Live Science. (before)

=> Natalie studied physics at the University of California before she became a staff writer for Live Science.