How was your weekend —- _________.

Sir, would you mind my sitting next to you—__________. My father will sit here in a minute.

Jenny, how many years have you studied in China?— I ________ here for three years by the end of this month

依次填入下面横线上的句子，与上下文衔接最恰当的一组是（ ） 那个春天的黄昏，当满树繁花不经意间闯入我的眼帘，我的心不禁为之震颤。我惊诧，三年时间，树天天在，花年年开，

Attention, please. All of you students _______ remain in their seats until all the papers have been collected.