IV. Read the following passage and choose the best answer for each blank.

             The General Certificate of Secondary Education or the GCSE examinations for (26) _____ are the standard school-leaver qualifications taken by (27) _____ all UK students in the May and June following their 16th birthday. If you come to a UK (28) _____ school before you (29) _____ the age of 16, you will study towards GCSE examinations in up to 12 subjects. Some subjects are compulsory, including English arid mathematics, and you can select (30) _____, such as music, drama, geography and history from a series of options. GCSEs provide a good all-round education (31) _____ you can build on at college and eventually at university. AS- and A-levels are taken after GCSEs. They are the UK qualifications most (32) _____ accepted for entry to university and are available in subjects from the humanities, arts, sciences and social sciences as well as in (33) _____ subjects such as engineering, and leisure and tourism. You can study up to four subjects at (34) _____ same time for two years, (35) _____ AS-level examinations at the end of your first year (called the lower-sixth) and A-level qualifications at the end of your second year (called the upper-sixth).

(50) _____ AS-level examinations at the end of your first year (called the lower-sixth) and A-level qualifications at the end of your second year (called the upper-sixth).