All those____ at the meeting are free to make a suggestion.A joinB presentC attendD take part in答案是B
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All those____ at the meeting are free to make a suggestion. A join B present C attend D take part in 答案是Bpresent at the meeting 作后置定语，一般present做定语时 都要后置，相当于who are present at the meeting.
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All those____ at the meeting are free to make a suggestion. A join B present C attend D take part in 答案是Bpresent at the meeting 作后置定语，present一般都要做后置定语。join “加入”；如果用attend应该是 All those attending the meeting are free to make a suggestion。用take part in 也一样。
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All those____ at the meeting are free to make a suggestion.A joinB presentC attendD take part in用排除法,JOIN后面我忘了一般跟什么介词,反正不是AT,ATTEND后面不跟介词,而TAKE PART IN 因为已经有介词了,所以唯一剩下的就是B了.