at / on / in

1. The meeting will take place ___ the main conference room located on the third floor, so please arrive at least 10 minutes early.

2. He left his phone ___ the desk by mistake and didn’t notice until he reached the office lobby.

3. The information can be found ___ the second chapter of the guidebook, where the author discusses advanced techniques for the subject.

by / until

4. You must submit the application ___ Friday to ensure that it is processed in time for the event.

5. The store will remain open ___ midnight, allowing customers extra time to shop for the holiday season.

for / during

6. The professor remained available ___ the entire lecture to answer any questions from students who needed additional clarification on the subject matter.

7. The training program lasted ___ three months and included intensive sessions on both technical and soft skills development for employees at all levels.

throughout / within

8. The new policy will be effective ___ the organization, impacting every department and all levels of management without exception.

9. The memo explained that all employees must stay ___ their assigned workstations unless permission is granted by a supervisor.

around / beside / to / through

10. The tour guide walked ___ the narrow pathway, leading the group toward the ancient ruins located deep in the forest.

11. The children gathered ___ the teacher, eagerly waiting for her to start reading the new storybook she had brought for them.

12. The coffee shop is located directly ___ the library, making it a convenient place for students to take breaks while studying.

13. She delivered the package ___ the main office, ensuring it reached the correct department on time for processing and approval.

Prepositions and Conjunctions with Similar Meanings

14. The team was reviewing the proposal ___ the manager arrived to provide further instructions about the upcoming presentation.

15. The event was canceled ___ unforeseen technical difficulties that could not be resolved in time for the scheduled start.

16. ___ the new software is user-friendly, additional training sessions are required to ensure all employees can use it efficiently.

17. ___ you submit the report on time, the project will not be delayed, and we can proceed with the next phase as scheduled.

Coordinating Conjunctions

18. The meeting was rescheduled to next week, ___ it conflicted with several participants’ prior commitments this week.

19. The proposal received positive feedback from the stakeholders, ___ it failed to address some critical operational challenges raised by the review committee.

Correlative Conjunctions – Subject Verb Agreement

20. Both the project manager and the design team ___ responsible for presenting the final proposal to the client during next week’s meeting.

21. Neither the financial reports nor the marketing strategy ___ sufficient to convince the investors to proceed with the proposed merger.

22. The team leader, as well as the department heads, ___ responsible for overseeing the successful execution of the new strategic plan.