C.
I:
1.C 2.F 3.B 4.D 5.B 6.D
D.
I:
1.In spite of having a good salary,he was unhappy in his job.
2.He is used to getting up early in the morning.
3.If he doesn't study hard,he will fail the final exam next month.
4.If i am not invited,I will stay at home.