Choose the best answer to complete these following sentences

Exercise 1: Choose the best answer to complete these following sentences.
1. I_____ in Jakarta. I've lived here all my life.
A. am used to living B. used to living
C. use to live D. am used to live
2. Jane_____ for the telephone company, but now she has a job at the post office.
A. used to working B. used to work
C. is used to working D. am used to work
3. This work doesn’t bother me. I _____ hard. I've worked hard all my life.
A. used to working B. used to work
C. am used to working D. am used to work
4. Dick_____ a mustache, but he doesn't any more. He shaved it off because his wife didn't
like it.
A. used to having B. is used to having
C. was used to having D. used to have
5. When I was a child, I _____ anyone 40 was old.
A. used to think B. was used to thinking
C. used to thinking D. was used to think