Which Part 5 questions test word form rather than meaning?

Word-form items are the ones whose four options are all built from one root and differ only in ending or part of speech: require, requirement, required, requiring. Nothing in that set depends on the meaning you learned — the words around the gap decide, and they decide before you read the options.

Three checks settle them, in this order. If the gap follows an article, a possessive or a preposition, the gap needs a noun. If it follows a form of be, or sits immediately before another noun, it needs an adjective or a participle. If it sits between a subject and an object, or follows a modal verb such as must or will, it needs a verb. Run those three checks on the sentence first and three of the four options usually stop being candidates without any vocabulary work at all.

The items that survive those checks are not form items, and a word-family sheet will not settle them. If two options still share the required part of speech, the item is testing meaning or collocation, and what decides it is the noun object or the preposition that follows the gap — the kind of pair worth writing next to the noun on your own sheet, such as meet a deadline or responsibility for.

TOEIC Vocabulary by Word Family: Roots, Endings and the Collocations That Answer Part 5 →