FCE Use of English Part 4: Practice Tests(3 Free exercises)
Master FCE Use of English Part 4 with official key word transformations, instant practice, and rule breakdowns to pass your B2 First exam.

How Key Word Transformations Work
FCE Use of English Part 4 (Key Word Transformations) tests your ability to rewrite a sentence using a given capital key word so the meaning stays identical, using between two and five words.
In this part of the B2 First exam, precision is everything. You must complete a gapped sentence following strict parameters:
- Word Limit: Your final answer must contain strictly between 2 and 5 words.
- Key Word Lock: You cannot change the form of the given capital key word (e.g., if given SUCCESS, you cannot write successful).
- Dual Grading: Each question is split into two halves, earning up to 2 marks (one for grammar structure, one for vocabulary or collocation).
Interactive Practice: Test Your Skills
Test your knowledge with this classic Cambridge exam transformation right now:
- Original: It is a long time since our last conversation.
- Key word: SPOKEN
- Answer: We have not spoken for a long time.
- Rule: Changing a time-elapsed clause into the present perfect simple structure combined with for.
π Unlock Your Full B2 Potential Get unlimited Use of English practice, precise writing corrections, and mock exams designed to guarantee your success. Register Free on PassFirst
More from Learning Zone
FCE Mock Exam: B2 Reading & Use of English Test
An FCE Mock Exam for the Cambridge B2 First Reading and Use of English paper is a timed practice test replicating the official 7-part, 52-question format within a 75-minute limit. Taking a practice test measures your score on the Cambridge English Scale (160β179) and pinpoints specific grammar and vocabulary gaps before exam day.
FCE Use of English Part 2 Exercises & Answers
Master FCE Use of English Part 2 (Open Cloze) with practice exercises, answers, grammar rules, and instant AI corrections.
FCE Use of English Part 3 Exercises & Answers
Master FCE Use of English Part 3 with word formation tests, instant practice, and rule breakdowns to pass your B2 First exam.
PassFirst Β· Alfie AI
Master Use of English with AI
Get instant corrections on 50+ exercises. Writing feedback, mock exams, and smart progress tracking for B2 First.
How Alfie marks writing β