20.Firms that use computers have found that the number of staff ( ) is needed for quality control can be substantially reduced.

20.“People who are sensitive can appreciate art better.” The relative clause in this sentence ( ).

19. Which of the following reflexive pronouns expresses emphasis?

18. What is the function of the present progressive in“My neighbor is always playing loud music at midnight”?

17. It is easy to think you understand another person,( ) later that you were wrong.

16. From the outside, the two start-up companies' partnership looks like ( ) story.

15. Sometimes a written message succeeds ( ) an oral one fails; at other times, talking to the recipient will produce results that the printed word can't match.

14. In order that no further damage ( ), it is crucial that you get the wounded back to the intensive care unit as quickly as possible.

13. Advocates of studying abroad believe students will reach new levels of intercultural understanding far exceeding what they ( ) be able to accomplish just at home.

12. If you need me to help with your teleconferencing arrangements, I can be reached with the touch of a single button on ( ) special phone of Harry's.

11. The department secretary was ( ) the guest speaker at the station at 10 this morning, but the speaker's journey was canceled on a short notice.