第二部分:英语知识运用(共两节,满分45分)第一节:单项填空(共15小题;每小题1分,满分15分)从每题所给的A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。21. I wonder we haven’t received her invitations yet. Her wedding is only two days away.A. how B. why C. that D. When
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