왜 답이 이것들이 되는건지 설명좀 해주세요..ㅠㅠ
아주 기초가 없어서 그런지 문제마다 이론 적용하기가 어렵네요
17.After Mr.Totti ___ the new design for the resort's brochure, he requested several changes.
보기saw. sees. seen. seeing
18. during the meeting with the board, Mr.Althorp announced that the company___ the building project ahead of schedule.
보기 finishing. finishes.finished.finish
19.Before they took their morning break, the event organizer___ attendees ahout the change of speaker for the afternoon session.
보기.notify.is notifying.had notified.notifies.
22.Prisciila and her team members ___ a lot of useful information about new design trends when they attended the trade fair.
보기 will gather.to gather.gather.gathered
27. Analysts believe the public's fear of future economic crises___ a decrease in consumer spending over the year.
보기were causing, is caused, causing.has caused
31. Ms.Seiko ___ a member of Eastern Vineyard's board of directors since the company opened 30 years ago.
보기.was.is.will be.has been
34. The guest speaker for the conference, Dr.Sanderson, ___ expected to arrive on May2, but a flight cancelation caused a delay and she will now be here on May 3.
보기are. being.was.were
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