will be flying (Action in progress at a specific time in the future).

: 1. 'd been climbing; 2. do; 3. haven't read; 4. would have passed; 5. will have run out. Comprehensive Resources

The primary and most authoritative source for all answers is the official course material, specifically the "Solutions: Upper-Intermediate: Teacher's Pack" for the third edition, published by Oxford University Press (OUP).

This article is for informational purposes. Always refer to the official Solutions Upper Intermediate Teacher’s Guide (Third or Fourth Edition) for authoritative testing materials.

– teacher vs. student

Student wrote: "I wish I would have studied more." Key answer: "I wish I had studied more." At B2, wish + past perfect expresses past regret; wish + would is for annoying present habits.

Evaluating compound nouns, phrasal verbs, collocations, and idiomatic expressions.

Even with a key, errors can occur. Here are typical issues to watch for:

: Includes rubrics for formal letters or essays, graded on content, form, range, and accuracy. Accessing Answer Keys

: 1. had won; 2. had been working; 3. hadn't given; 4. had made. Past Habits (Used to/Would) used to watch lots of horror movies...". to the cinema much...?". Vocabulary & Use of English Media & Fame : investigative, tabloid, paparazzi, invading, harassing. Phrasal Verbs/Idioms : caught up on (news), obsessed with, draw the line. Progress Tests 1–5 (Cumulative Keys)