No one objected to Harry's presiding over the condominium owner's meeting; what everyone___________objecting to was his rudeness.
A、were
B、have been
C、was
D、had been
【正确答案】：C
【题目解析】：句中的everyone是一个关键词，它的后面用单数的谓语动词。因此，答案是C项。句意为:“没有人反对Harry主持公寓业主的会议，所有人都反对的是他的无礼行为。”
