Помогите пожалуйста составить предложения со фразами  to keep an open mind, a flexible course, to get promotion, a student loan, GCSEs

-My teacher always advises me to keep my mind open. -This year I've chosen a flexible course of study. -If you want to get a promotion, try to be calm and patient. -Student loan depends on students' marks(credits). -GCSE means the General Certificate of Secondary Education and it is internationally recognised qualification.