답변을 얻은 뒤 반드시 감사의 덧글을 남기고, 좋은 답변은 채택해 주시는 센스...
질문할 때 예의를 지키시기 바랍니다.(빨리... 고수분만..... 이런 식의 요구는 자제 바랍니다.)
질문 내용 : 1006. People in some societies ___________ you may marry more than one time.

1. have been different about
2. have differed as to whether
3. have differed concerning what
4. have been different with regard it

1011. The Olympic Games have frown from a one-day affair to __________ sixteen days each time it is held.

1. that which lasts
2. one that lasts
3. that which is lasted
4. one that is lasted

--- 해답지를 봐도 잘 모르겠습니다,...

1013. Limiting the number of full-time employees who we have to pay benefits for, and using more part-time people should reduce expenses considerably and increase-profits.

--여기에서 should 가 맞나요?