Help the food critic finalize their rather scathing review of the amateur baking contest by dragging the correct phrases into the gaps.
The annual village bake-off featured twelve spectacular fruitcakes, none of which could be cut with a standard kitchen knife. The head judge glared at the four amateur bakers, all of whom were desperately trying to hide their suspiciously store-bought packaging.
The annual village bake-off featured twelve spectacular fruitcakes, none of which could be cut with a standard kitchen knife.
Because there are twelve fruitcakes (more than two), we use the quantifier "none" instead of "neither." We must use the relative pronoun "which" rather than "them" to connect the clauses; using "none of them" would create a grammatically incorrect comma splice.
The head judge glared at the four amateur bakers, all of whom were desperately trying to hide their suspiciously store-bought packaging.
Following a preposition like "of," we must use the object pronoun "whom" when referring to people. "All of who" is grammatically incorrect, and "all of those" would create a comma splice.
Relative clause
If you've ever paused over who vs whom vs that vs which — or wondered whether a comma belongs before who — you've hit the relative-clause puzzle. English makes meaning depend on whether the clause is essential information or just extra; one missing comma can flip the meaning of the whole sentence.
A relative clause is a dependent clause modifying a noun, introduced by a relative pronoun (who, whom, whose, which, that) or relative adverb (where, when, why). Restrictive relatives are essential and unmarked; non-restrictive are extra information and set off with commas.
Pronoun
If you've ever paused before who vs whom, its vs it's, or me vs I — you've felt how much weight pronouns carry in English. They're tiny words but they're case-sensitive (I vs me), context-dependent, and one of the few places where everyday English still trips careful speakers. Get the common patterns right and you instantly sound more careful.
A pronoun is a closed class of small words that replace nouns or noun phrases. Types: personal (I, you, he…), demonstrative (this, that), relative (who, which), interrogative (who?, what?), reflexive (myself), and indefinite (everyone, nobody).
Complex sentence
If your writing is technically correct but reads like a list of short, disconnected statements — I overslept. I missed the bus. I was late. — you've hit the limit of what simple sentences can do. Complex sentences are how you fuse those into one flowing thought (Because I overslept, I missed the bus and was late). It's the single biggest jump in writing maturity.
A complex sentence combines an independent clause with at least one dependent clause: I missed the bus because I overslept. The dependent clause typically signals time, reason, condition, or describes a noun, and is introduced by subordinating conjunctions (because, although, if, when) or relative pronouns.
Punctuation
If your writing keeps coming back marked up with red — comma here, period there, semicolon nowhere — you're missing the small set of rules that govern English punctuation. There are roughly a dozen marks, and once each one's job is clear (a period for full stops, a comma for short pauses, a semicolon for closely linked independent clauses), the noise drops dramatically.
Punctuation is the set of marks (periods, commas, colons, semicolons, question marks, apostrophes, quotation marks, dashes) that signal sentence structure and rhythm to the reader.
C1 | Advanced
If you've ever sat through a lecture in English, written a complaint letter, or argued a point in a meeting and come out feeling actually understood — not just tolerated — you've felt what C1 looks like. The level matters because it's where most universities, certifications, and skilled-work environments draw their language line.
C1 is the advanced level in the CEFR framework, demanding fluent and flexible language: inversion for emphasis, mixed and advanced conditionals, formal subjunctive, cleft sentences, and complex nominal phrases — all used appropriately across registers.
Difficulty: Hard
If easy and medium questions are clicking but you still feel exposed in real conversation or formal writing, you've outgrown the basics. Hard material is where the gaps you didn't know you had show up: the distractor that "sounds right", the rule that interacts with another rule, the case where context changes the answer. It's where genuine fluency is built.
The Hard difficulty tag marks upper-intermediate to advanced challenges — typically B2 and above. Interacting rules, edge cases, plausible distractors, and contexts that require genuine understanding rather than surface pattern-matching.