She ______________________________________to the dance party(接受了参加舞会的邀请).
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Before answering me, he _______________________for a long time(他花了很长时间对此问题进行了仔细思考).
His sincerity should not _________________________(不应该受到怀疑).
She wants to____________________________(有一个自己的 房间).
阶段性是平均消费范围变化的特性。()
A. 对
B. 错