Before diving into the booklet, it is vital to understand the level. According to the CEFR (Common European Framework of Reference), an Upper Intermediate student can:
When searching online, ensure the listing explicitly says "with Key" . Some sellers sell the "Teacher’s Booklet" (which has answers) or the "Student’s Test Booklet without Key" (useless for solo checking). Check the ISBN. The correct booklet usually has an orange or red cover that matches the Upper Intermediate level. new english file upper intermediate test booklet with key