Which conjunction best completes this sentence? 'The cascade of change stops ______ people resist the influence.'
easy选项：A. although B. unless C. because D. until
Which verb tense is correctly used to describe completed simulations in a research context?
easy选项：A. The researchers conduct thousands of simulations. B. The researchers had conducted thousands of simulations. C. The researchers were conducting thousands of simulations. D. The researchers have conducted thousands of simulations.
Which of the following words is closest in meaning to 'influential' in the context of social networks?
easy选项：A. Effective B. Powerful C. Dominant D. Significant
Identify the correct inverted sentence structure:
easy选项：A. Never I have seen such a beautiful sunset. B. Hardly had the meeting begun when the power went out. C. Only after the accident the safety protocols were improved. D. Not only she sings well but also plays piano.
Which preposition correctly completes the fixed phrase? The success of the project depends _____ proper planning.
easy选项：A. with B. from C. on D. by
Choose the correct verb form to complete the subjunctive mood sentence: If I _____ more time, I would have checked the calculations again.
easy选项：A. have B. had C. had had D. would have
Which of the following sentences contains an objective clause?
easy选项：A. The book that I borrowed from the library is due tomorrow. B. She explained why the experiment failed in her report. C. When the meeting will start has not been announced. D. Although he was tired, he finished the project on time.
Which sentence demonstrates proper inversion structure?
easy选项：A. Never before such attention has been paid to data protection. B. Never before has such attention been paid to data protection. C. Never before such attention being paid to data protection. D. Never before such attention paid to data protection.
Identify the correct subjunctive mood: 'It is crucial that the board ______ stricter data redundancy protocols immediately.'
easy选项：A. implements B. implement C. implemented D. has implemented
Choose the correct relative pronoun: 'Data security measures, ______ directly affect market valuation, require systematic management.'
easy选项：A. that B. which C. what D. whom
Which tense should properly complete this sentence? 'The company ______ its data protection protocols since the cybersecurity incident last year.'
easy选项：A. have guarded B. guarded C. guard D. are guarding
When discussing corporate resource allocation, which of the following verbs is most appropriate to express a formal suggestion in written reports?
easy选项：A. suggest B. recommend C. insist D. claim
Select the appropriate collocation: The government plans to ______ a new policy to boost employment.
easy选项：A. make B. conduct C. implement D. perform
Identify the correct tense form: By the time she arrived, the meeting ______.
easy选项：A. has ended B. ended C. had ended D. ends
Which conjunction correctly completes the sentence? The professor discussed ______ the theory could be applied in practice.
easy选项：A. that B. whether C. if D. how
Choose the correct synonym to replace 'consolidated' in this sentence: The merger consolidated the company's market position.
easy选项：A. weakened B. disrupted C. strengthened D. divided
Which of the following sentences correctly uses inversion in a hypothetical conditional clause?
easy选项：A. Had I enough money, I will buy the car. B. Were she here, she would help us. C. Should he came earlier, he can meet the manager. D. Did they knew the truth, they might change their minds.
Which conjunction best completes this comparison: '___ public-sector unionization rates are high, private-sector rates remain low'?
easy选项：A. Because B. Unless C. Since D. While
Which verb tense should be used to describe the membership growth from 1960 to present?
easy选项：A. Simple past B. Present perfect C. Past perfect D. Future continuous
Which word is closest in meaning to 'unionized' in the context of labor organizations?
easy选项：A. managed B. controlled C. organized D. represented