Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.

      An A level is an Advanced level GCE qualification. This exam is (23) ____ taken after two years of A level study, following the O level/IGCSE exams. Students can take any number of A level exams; in the UK, most college students take three or four A level exams for their final two years of study. The (24) ____ of A levels to be taken will often depend on the qualifications that the university chosen requires. A level results can open doors to undergraduate studies at some of the best higher educational institutions in the world, and to a wide range of professional and vocational courses (25) _______ can help build skills for an exciting and rewarding career. In many countries round the world, some schools follow the GCE syllabus to prepare their pupils for taking A level exams. Students at these schools should enquire at their school about how they can register and sit (26) ____ the exams. Students who do not attend a school that follows the GCE syllabus can still take A level exams and can register as a private individual with the British Council.

      In order to register for an A level exam one will need to complete an entry form which will become available at the British Council offices. Forms usually become (27) ____ for January examinations in early August of the preceding year. For May/June examinations, they are available in early December of the preceding year.

(Source: https://qualifications.pearson.com)