Incorrect. The correct idiomatic expression is “in accordance with,” meaning in agreement or conformity with. The preposition “to” is incorrect in this phrase. Example: “The decision was made in accordance with the company’s policies.” (Not: “The decision was made in accordance to the company’s policies.”)

Incorrect. The positive degree “as high as” is used for equal comparisons, not “as highest as.” The superlative “highest” cannot be used with “as… as.” Example: “She is as tall as her brother.” (Not: “She is as tallest as her brother.”)

Incorrect. The phrasal verb “look through” means to examine or review something quickly. “Look into” means to investigate, which is not appropriate for briefly examining a report. Example: “She looked through the documents before signing them.” (Not: “She looked into the documents before signing them.”)

Incorrect. The phrasal verb “get over” means to overcome or move past something. “Get out” means to leave or escape, which does not fit the context of overcoming a fact. Example: “He cannot get over the fact that he lost the match.” (Not: “He cannot get out the fact that he lost the match.”)

Incorrect. The phrasal verb “get by” means to manage or survive with limited resources. “Get away with” means to escape punishment, which does not fit the context of managing with few computers. Example: “We can get by with a small budget.” (Not: “We can get away with a small budget.”)

Incorrect. The phrasal verb “run up against” means to encounter or face difficulties or opposition. “Run in” means to arrest or to break in a new engine, which does not fit the context. Example: “The proposal has run up against unexpected resistance.” (Not: “The proposal has run in unexpected resistance.”)

Incorrect. The phrasal verb “fall back on” means to rely on something as a reserve or alternative. The preposition “on” is required. Example: “If this plan fails, we can fall back on our savings.” (Not: “If this plan fails, we can fall back our savings.”)

Incorrect. The phrase “do away with” means to abolish or eliminate, which does not fit the context. The correct phrase is “away from,” meaning to keep a distance. The sentence should read “kept some investors away from the stock exchange.” Example: “Fear kept investors away from the market.” (Not: “Fear kept investors do away with the market.”)

Incorrect. The phrasal verb “back down” means to withdraw from a position or confrontation. “Back on to” is not a standard phrasal verb and does not fit the context. Example: “He refused to back down despite the pressure.” (Not: “He refused to back on to despite the pressure.”)

Incorrect. The phrasal verb “break away from” means to separate or secede from a group or organization. “Break up from” is not idiomatic in this context. Example: “The group decided to break away from the main organization.” (Not: “The group decided to break up from the main organization.”)

Incorrect. The phrasal verb “call out” means to challenge or confront someone publicly. “Call off” means to cancel, which does not fit the context of confronting someone. Example: “He decided to call out his opponent for the unfair remarks.” (Not: “He decided to call off his opponent for the unfair remarks.”)

Incorrect. The phrasal verb “carry through” means to complete or implement something successfully. “Carry over” means to postpone or transfer, which does not fit the context of implementing reforms. Example: “They managed to carry through the project despite challenges.” (Not: “They managed to carry over the project despite challenges.”)

Incorrect. The idiom “come to pass” means to happen or occur. “Come to that” is used to introduce an additional point, which does not fit the context of something happening. Example: “I don’t believe those changes will ever come to pass.” (Not: “I don’t believe those changes will ever come to that.”)

Incorrect. The phrasal verb “draw down” means to withdraw or use funds from a credit facility. “Draw up” means to prepare a document, which does not fit the context of using credit. Example: “The company decided to draw down its credit line.” (Not: “The company decided to draw up its credit line.”)

Incorrect. The phrasal verb “fall through” means to fail or not be completed, especially for plans or deals. “Fall apart” means to break into pieces or disintegrate, which is less idiomatic for sales. Example: “The deal fell through at the last minute.” (Not: “The deal fell apart at the last minute.”)

Incorrect. The phrasal verb “fall behind” means to fail to keep up with payments or obligations. “Fall back in” is not idiomatic in this context. Example: “Many families fell behind on their mortgage payments during the crisis.” (Not: “Many families fell back in their mortgage payments during the crisis.”)

Incorrect. The correct question tag for “I am” is “aren’t I.” Although “am” is the verb used, “amn’t” is not standard in modern English. The accepted form is “aren’t I.” Example: “I am on time, aren’t I?” (Not: “I am on time, amn’t I?”)

Incorrect. The specific past time reference “In 2014” requires the simple past tense, not the present perfect tense. Therefore, “have demonstrated” should be replaced with “demonstrated.” Additionally, “elder” is typically used for family relationships, while “elderly” is the correct adjective for older people in general. Example: “In 2020, scientists discovered a new species.” (Not: “In 2020, scientists have discovered a new species.”)

Incorrect. While “owing to” is grammatically correct and means “because of,” “due to” is more commonly used and idiomatic in this context when directly following the verb “was.” Both can be used, but “due to” is preferred in formal usage after a linking verb. Example: “The delay was due to bad weather.” (preferred over “The delay was owing to bad weather.”)

Incorrect. The subject “South Asia’s economies” is plural, so the verb must be plural “are,” not “is.” The phrase “most vulnerable” is correct in meaning, but the given options require selecting the one with the correct verb form. “Are the world’s most accessible” is grammatically correct with the plural verb. Example: “The region’s economies are the most affected by climate change.” (Not: “The region’s economies is the most affected by climate change.”)