Your taskFill in the gap in each sentence with the correct word or phrase.forwithoftoonin addition toWith regard toininIn contrast toat the risk ofin exchange forcapable ofonon0 / 15 answeredYour score0 / 150%Keep practising! Focus on the explanations below.1The project coordinator is responsible __ ensuring that all deliverables are submitted on schedule.Correct answer: for▸ Why?"Responsible for" is the fixed adjective + preposition collocation; "responsible of" is a common transfer error in speakers whose L1 uses an "of"-equivalent after this adjective.2The committee was not satisfied __ the initial findings and requested a full independent review.Correct answer: with▸ Why?"Satisfied with" is the fixed collocation; "satisfied of" (common among Romance-language speakers) and "satisfied about" are both incorrect.3Not all members of the public are aware __ the significant changes to the electoral registration process.Correct answer: of▸ Why?"Aware of" is the fixed adjective + preposition pattern; "aware about" is the most common learner error, formed by analogy with "know about".4The weaker-than-expected results were attributed __ a combination of supply chain disruptions and reduced consumer confidence.Correct answer: to▸ Why?"Attribute something to" is the fixed collocation meaning "to identify as the cause"; "attributed for" and "attributed from" both apply the wrong preposition.5It is hard to concentrate __ complex reading tasks when the open-plan office is particularly noisy.Correct answer: on▸ Why?"Concentrate on" is the fixed verb + preposition collocation; "concentrate in" is a frequent transfer error among Romance-language speakers.6The scholarship covers tuition fees __ a monthly living allowance for all successful applicants.Correct answer: in addition to▸ Why?"In addition to" is the formal prepositional phrase meaning "as well as"; "in addition of" and "in addition with" both get the closing preposition wrong.7__ the recent data breach, the company will hold an emergency board meeting this Thursday.Correct answer: With regard to▸ Why?"With regard to" (formal standard) introduces the topic; "regarding to" incorrectly adds "to" after "regarding", which is the most common error.8The research group is particularly interested __ investigating the social factors that shape language acquisition in early childhood.Correct answer: in▸ Why?"Interested in" is the fixed adjective + preposition collocation before a gerund; "interested to" signals pleasant discovery, not an ongoing research focus.9After several failed attempts, the engineering team finally succeeded __ developing a fully recyclable battery casing.Correct answer: in▸ Why?"Succeed in (doing something)" is the fixed pattern for achieving a goal; "succeed to" carries an entirely different meaning — inheriting a title or position.10__ last year's sluggish growth, this quarter's performance figures have been remarkably strong.Correct answer: In contrast to▸ Why?Both "In contrast to" and "In contrast with" are accepted; "in contrast of" and "by contrast to" are the most frequent errors — the phrase must close with "to" or "with".11She spoke out against the restructuring plan __ alienating her line manager, because she felt the risks had been seriously underestimated.Correct answer: at the risk of▸ Why?"At the risk of" is the fixed phrase meaning "despite the danger of a negative consequence"; "in the risk of" and "with the risk of" both substitute incorrect prepositions.12The tech firm agreed to share its proprietary data __ guaranteed access to the government's research infrastructure.Correct answer: in exchange for▸ Why?"In exchange for" is the fixed phrase meaning "as a trade for something received"; "in exchange of" is a common error shaped by languages where "of" maps to this concept.13Very few candidates were considered __ managing such a high-profile diplomatic mission independently.Correct answer: capable of▸ Why?"Capable of" followed by a gerund is the fixed pattern; "capable to" is a direct transfer error from "able to", as learners frequently conflate these two near-synonyms.14Despite considerable time pressure, the board insisted __ conducting a full risk assessment before signing the acquisition agreement.Correct answer: on▸ Why?"Insist on (doing something)" is the fixed verb + preposition + gerund pattern; "insist in" is a common transfer error from Spanish and Italian speakers.15The intern had redesigned the entire onboarding system __ her own initiative, which impressed the HR director considerably.Correct answer: on▸ Why?"On one's own initiative" is the fixed idiomatic phrase meaning "without being prompted"; "by her own initiative" is the most common error, a false transfer from the familiar pattern "by oneself".Check AnswersPlease answer at least one question first.Found an error in this exercise? Let us know.