relative cls,what vs which

1. This isn’t ______ I was expecting from a five-star hotel.
2. The way he responded was not at all ______ I had hoped.
3. The car, ______ he bought last year, broke down again.
4. Did you understand ______ caused the delay in our shipment?
5. She told me everything ______ happened at the conference.
6. Our final design includes extra safety measures, ______ should protect users from common accidents.
7. I can’t figure out ______ went wrong with the computer.
8. He finally admitted ______ most of us already suspected.
9. The restaurant, ______ serves the best sushi in town, is closed for renovations.
10. I need to explain ______ the new policy entails for everyone involved.
11. The box, ______ arrived this morning, contains the missing documents.
12. The marketing team is still not sure ______ features will appeal most to customers.
13. I was shocked by ______ the critics wrote about the film.
14. The guidelines, ______ were updated last month, apply to both new and existing employees.
15. She never revealed ______ truly upset her.
16. This data, ______ we collected over six months, shows promising trends.
17. We couldn’t believe ______ he was capable of doing under pressure.
18. The old warehouse, ______ has been vacant for years, will be converted into a gallery.
19. We first need to decide ______ resources are most critical for the project.
20. That’s exactly ______ I meant when I said we need better communication.

Answer Key

Below is one correct solution for each blank. Explanations are included to illustrate why “what” or “which” is chosen.

1. This isn’t what I was expecting from a five-star hotel.

2. The way he responded was not at all what I had hoped.

3. The car, which he bought last year, broke down again.

4. Did you understand what caused the delay in our shipment?

5. She told me everything that happened at the conference.

6. Our final design includes extra safety measures, which should protect users from common accidents.

7. I can’t figure out what went wrong with the computer.

8. He finally admitted what most of us already suspected.

9. The restaurant, which serves the best sushi in town, is closed for renovations.

10. I need to explain what the new policy entails for everyone involved.

11. The box, which arrived this morning, contains the missing documents.

12. The marketing team is still not sure which features will appeal most to customers.

13. I was shocked by what the critics wrote about the film.

14. The guidelines, which were updated last month, apply to both new and existing employees.

15. She never revealed what truly upset her.

16. This data, which we collected over six months, shows promising trends.

17. We couldn’t believe what he was capable of doing under pressure.

18. The old warehouse, which has been vacant for years, will be converted into a gallery.

19. We first need to decide which resources are most critical for the project.

20. That’s exactly what I meant when I said we need better communication.