many people(being)absent,the meeting had to be put off

many people(being)absent,the meeting had to be put off many directors__,the boat meeting had to be put off. Many students being absent,we had to put off the conference. so many directors being absent the board meeting had to be p so many directors being absent,the board meeting had to be p So many diretors being absent,the board meeting had to be pu so many people (being absent),the conference had to be postp So many people___,the meeting had to be put off.选B ; we had to put the meeting off. so many representatives_ ,the conference had to be put off so many directors being absent ,the board meting had to be p _____ ； we had to put the meeting off.