32번. Kenji Fujitsu will be ______ after the concert to pose for photographs and answer questions from the press

(a) avilable (2) acailability (3) acailavly (d) avilavleness

답은  a번 입니다   a는 형용사 b와 d 명사  c는 부사 인것같은데. a번이 답인 이유가 concert 수식해주려고 쓰는건가요??  잘모르겟네요..  설명좀해주세요.

34번  Had the shipment _____ before the deadline, production might have started earlier than expected

(a) delivering (b) was delivered (c) been delivered (d) delivered

가정법 과거 완료 문제로 if 가 생략되었는데요 전 had pp 라서 d라고 그냥 선택하고 넘어 갔거든요 근데 답은 c번   been delivered 가되는 이유좀 설명해주세요.ㅠ 이해가잘안가서요.

had pp   hap be pp가 되는건가요 이개념에대해서 설명 좀 부탁 드릴게요.ㅠ

38번 Skinclear Sunblock has recently _____ the approval of the Bureau of Food and Drugs and is highly recommended by the National Dermatological Society

(A) gain (b) gained (c) gains (d)  gaining

 답이 a 번이 되는 이유는 설명해주세여ㅠ