Answer: Q1: The correct answer is "What steps can the editors of the magazine ask its readers to take to improve its quality?"
Q2: The correct answer is "Imminent". Imminent means about to happen, which accurately describes the situation where a crash between the two cars was becoming clear.
Q3: The correct answer is "Vain". Vain means excessively proud of or concerned about one's own appearance, abilities, achievements, etc.; conceited.
Q4: The correct answer is "The requirements are different in each project." This is the correct grammatical structure, as the requirements can vary across different projects.
Q5: The correct answer is "The number of household pets in the U.S. has increased in the last 5 years." This is the correct sentence structure to describe the increase in the number of household pets.
Explanation: