19. Although he tried his best, he didn’t pass the exam. * a.Despite of trying his best, he didn’t pass the exam. b.Inspite of he tried his best, he didn’t pass the exam . c.Though he didn’t pass the exam, he tried his best. d.Despite trying his best, he didn’t pass the exam.

Although he tried his best, he didn’t pass the exam. 

a. Despite of trying his best, he didn’t pass the exam.

→ Sai vì: Despite không đi với of. 

b. Inspite of he tried his best, he didn’t pass the exam.

→ Sai vì: Inspite of + N/ Noun phrase 

c. Though he didn’t pass the exam, he tried his best.

→Sai vì: sai về nghĩa

d. Despite trying his best, he didn’t pass the exam.

→Đúng vì: Despite + Noun phrase / V_ing