Put the verbs in brackets into the present perfect simple, present

Put the verbs in brackets into the present perfect simple, present perfect continuous or the past simple.
Ann Baker ... (graduate) from the law school in 1962 but she ... (never/work) as a lawyer. She ... (decide) to become a science fiction writer because she always ... (find) stories about other planets fascinating. Ann ... (write) books for more than fifteen years and so far she ... (publish) eleven books. She ... (receive) many awards and one of her books ... (become)a best seller in 1975. For the last six months Ann ... (work) on her latest novel which is about a young couple who travel to Pluto.