МГИМО / ДВИ / Английский язык / Тест 13 / Задание 5 / найдите ошибку в предложении

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Найдите ошибку в каждом из следующих предложений 
 

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Instructions: Each sentence is divided into four parts: A, B, C, and D. One part contains a grammatical or lexical mistake. Choose the letter of the segment that contains the error.
 

1️⃣    The committee (A) have reached a consensus (B) about the new policy (C) despite disagreements among members (D).
 

2️⃣    Few of the participants (A) were prepared (B) adequate for (C) the challenging tasks (D).
 

3️⃣    She insisted (A) on speaking to (B) the manager herself (C), claiming the issue were (D) urgent.
 

4️⃣    The company (A) is aiming to increase (B) its profits by at least 20% (C) within next year (D).
 

5️⃣    Neither the employees (A) nor the supervisor (B) were satisfied with (C) the recent changes (D).
 

6️⃣    Having finished (A) the report, it was sent (B) promptly to (C) the project manager (D).
 

7️⃣    His explanation (A) lacked clarity, which confuse (B) many of the attendees (C) during the presentation (D).
 

8️⃣    The results (A) of the experiment has been (B) published in (C) a renowned scientific journal (D).
 

9️⃣    The lecturer (A) encouraged students to participate actively (B) in discussions and asking (C) questions (D).
 

🔟    Despite the rain (A), the event continued as plan (B) and attracted a large audience (C) anyway (D).
 

1️⃣1️⃣    The manager (A) was praise (B) for her decisive actions, which significantly improved (C) the team's morale (D).
 

1️⃣2️⃣    I would have called (A) earlier, but my phone's battery run out (B) unexpectedly (C) last night (D).
 

1️⃣3️⃣    The new policy (A) requires employees to submit (B) their reports by end (C) of the month (D).
 

1️⃣4️⃣    It is important to keep (A) in mind of (B) the cultural differences when negotiating (C) internationally (D).
 

1️⃣5️⃣    The artist (A) was inspired by the beauty of nature, which clearly reflected (B) in her recent (C) works (D).
 

1️⃣6️⃣    They had been waited (A) for hours before (B) the train finally arrived (C) at the station (D).
 

1️⃣7️⃣    The committee members (A) was unable to reach (B) an agreement despite (C) numerous attempts (D).
 

1️⃣8️⃣    The book provide (A) an insightful analysis of (B) the economic crisis and suggests (C) reforms (D).
 

1️⃣9️⃣    We must consider (A) all possible outcomes before (B) making any critical (C) decisions (D).
 

2️⃣0️⃣    The teacher (A) demanded that the assignment is submitted (B) by Monday (C) without delay (D).