1.
1. _____ one of the most important factors affecting climate change today.
2.
2. The professor encouraged her students _____ additional research before submitting their papers.
3.
3. It is widely believed _____ regular exercise contributes to better health.
4.
4. The population of the city is growing _____ than experts predicted a decade ago.
5.
5. Only after the results were announced _____ the significance of the discovery.
6.
6. The success of the project depends _____ the cooperation of all team members.
7.
7. The bridge _____ by a team of engineers in the early twentieth century.
8.
8. Students _____ attend the seminar will receive certificates of participation.
9.
9. Neither the manager nor the employees _____ aware of the policy changes.
10.
10. The committee postponed _____ a final decision until more information became available.
11.
11. _____ the experiment would succeed remained uncertain until the final stage.
12.
12. The new model is considerably _____ than the previous version.
13.
13. Rarely _____ such a dramatic increase in productivity.
14.
14. . The report was submitted _____ the department head for final approval.
15.
15. The scientist _____ research was published last year received an international award.
16.
16. The professor was surprised by (A) how quickly the students (B) completed the assignment and how accurately (C) they was able (D) to apply the concepts (D).
17.
17. The professor advised (A) the students reviewing (B) the material carefully before (C) taking the examination (D).
18.
18. Scientists are still debating (A) what causes climate change and (B) how can governments respond (C) effectively to it (D).
19.
19. The new highway is (A) more wider than (B) the previous road and can accommodate (C) more traffic (D).
20.
20. Rarely students (A) have the opportunity (B) to interact directly (C) with internationally known researchers (D).
21.
21. The success of the program depends (A) in the cooperation of teachers, parents, and students (B) throughout the academic year (C) completely (D).
22.
22. The new bridge was completed (A) in 2023 and officially opening (B) by the president (C) during a public ceremony (D).
23.
23. Students (A) which participate (B) in the internship program gain valuable (C) work experience before graduation (D).
24.
24. Each of the employees (A) were asked to submit (B) a progress report (C) by Friday afternoon (D).
25.
25. The manager postponed (A) to make a decision (B) until additional information (C) became available (D).
26.
26. Researchers have discovered (A) that regular exercise not only improves (B) physical health but also reducing (C) stress levels significantly (D).
27.
27. The number of applicants (A) have increased (B) dramatically since the university launched (C) its scholarship program (D).
28.
28. She (A) is one of the students who works (B) hard every day at school (C) with her friends (D).
29.
29. The new software enables users (A) creating presentations (B) more efficiently (C) than before (D).
30.
30. The Pacific Ocean is (A) larger than any ocean (B) in the world and covers nearly one-third of Earth's surface (C) today (D).
31.
31. Only after the meeting ended (A) the participants realized (B) how serious the problem (C) actually was (D).
32.
32. The report was submitted (A) to the director and reviewed carefully (B) before it was distribute (C) to all departments (D).
33.
33. The scientist who (A) theory revolutionized (B) physics received numerous awards (C) throughout his career (D).
34.
34. The company is planning (A) expanding its operations (B) into Southeast Asia (C) next year (D).
35.
35. Neither the teachers nor the principal (A) were informed about the schedule changes (B) before the announcement (C) was made (D).
36.
36. The lecture was so informative (A) that students remain B) in the classroom discussing the topic (C) long after it ended (D).
37.
37. Many researchers believe (A) what artificial intelligence will transform education (B) in the coming decades (C) significantly (D).
38.
38. The museum contains (A) one of more (B) valuable collections of ancient artifacts (C) in the country (D).
39.
39. The students were encouraged (A) participating in community service projects (B) to develop leadership skills (C) and social responsibility (D).
40.
40. The research findings suggest (A) that economic growth depends (B) not only on investment but also improve (C) educational opportunities throughout society (D).
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