1-She worked well,..........she failed.
despite-in spite of-yet-so
2-In .....of working hard,you'll get high marks.
spite -account-case-despite
3-If it .........for hard work,I wouldn't have succeeded.
haven't been-hasn't been-had been-hadn't been
4-Having .........you the book,I went home.
give-given-gave-gives
5-But for his ........,he wouldn't have been successful.
works-work hard -hard work-worked