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TOEIC Link Part 5: as versus like

"As" and "like" both draw comparisons, but they split on grammar: "like" is a preposition that takes a noun, while "as" works as a conjunction before a full clause and also carries meanings "like" cannot — "in the role of" and "for example." Part 5 lines the two up around a single blank and decides the answer by what follows it, so reading the structure after the gap settles the choice faster than reasoning about meaning.

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TOEIC Link Part 5: as versus like

As and like are a favorite Part 5 pairing because they overlap just enough in meaning to feel interchangeable while obeying completely different grammar. Both can signal similarity, but like is a preposition and as is, in its comparison use, a conjunction — and that single difference decides what is allowed to follow each one. On top of that, as carries two meanings that like does not have at all: "in the role of" and "for example." Once you can tell which structure follows the blank and recognize those extra as meanings, the choice between the two stops being a judgment call and becomes a structural test.

The core split: noun versus clause

The most reliable distinction is grammatical, not semantic.

  • like is a preposition — it must be followed by a noun, a pronoun, or a gerund. She writes like a journalist. It works like this.
  • as is a conjunction (in comparisons) — it introduces a full clause with its own subject and verb. She writes as a journalist would. Do it as I showed you.

Read across the blank and ask the same question every time: is the next chunk a bare noun, or a subject plus a verb? A noun calls for like; a clause calls for as. Nobody understands the system like he does is the kind of sentence you'll hear in speech, but Part 5 follows the formal rule: a clause (he does) takes as, so the test answer is as he does. When the blank is followed by a noun and nothing else — it tastes like honey — as is wrong.

"As" meaning "in the role of"

As has a meaning like cannot express: it identifies the actual role, function, or capacity in which someone or something operates. This is not a comparison at all.

She works as a consultant.

This says she is a consultant — that is her job. Swap in like and the meaning flips: she works like a consultant means she is not a consultant but resembles one in how she works. Part 5 uses this contrast directly. When the sentence states a genuine role — He served as chairman, The room functions as a temporary office — the answer is as, and like is the trap that quietly changes the meaning to "merely resembling."

"As" meaning "for example"

As also introduces examples, most often in the fixed phrase such as, where like in formal writing is dispreferred.

Perishable goods such as dairy and produce require refrigeration.

Here such as means "for example." In careful writing — the register Part 5 tests — such as is the standard choice for listing examples, and a blank that sits inside this exemplifying structure points to as, not like. Recognizing the _such _ _ pattern is often enough to settle the item before you've parsed the rest of the sentence.

The "as ... as" comparison frame

As appears doubled in the equality comparison as ... as, and the blank can fall on either end.

The new model is as efficient as the previous one.

This frame says two things are equal in some quality. Like cannot build it — like efficient like is impossible. So when you see one as already in place around an adjective or adverb, the matching blank is the second as, and any like choice is automatically out. Watch for the negative variant not as ... as (or not so ... as), which keeps the same structure.

Why "like" still wins many items

None of this means as is the safe default — plenty of Part 5 answers are like, specifically when the blank is followed by a plain noun in a similarity comparison.

The lobby, like the rest of the building, was recently renovated.

The rest of the building is a noun phrase with no verb, so like is correct and as would be wrong. The decision is always the same mechanical test: noun after the blank → like; clause, a stated role, or an example list → as. Let the structure choose.

Run the structure test, then check meaning

On every as/like item, work in this order:

  1. What follows the blank — noun or clause? Clause → as. Bare noun → likely like, unless step 2 applies.
  2. Is a real role or an example being stated? "In the role of" or "for example" → as, even before a noun.

Meaning only breaks ties; structure settles most items outright. For the broader logic of preposition-versus-conjunction choices that this question type depends on, see our guides to comparatives and superlatives and the full TOEIC Link Part 5 grammar set. Drill the noun-versus-clause reflex until it's automatic, and as versus like becomes one of the quickest points on the section.