so many representatives_ ,the conference had to be put off

so many representatives_ ,the conference had to be put off
a were absentb to be absentc being abse d had been absent
84.27(与题无关)
详细解释下,c选项 是absent
英语人气:897 ℃时间:2020-05-22 23:51:12
优质解答
c
肯定不能是独立的句子,因为和后面一个完整的句子之间没有联接词,如 and ,but 之类的.
排除 a d
to be 一般表将来.排除b
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