根据所给中文意思完成句子，每空限填一词。
【小题1】我到达时，他们正在吃早餐。
They were _______ _______ when I arrived at their house.
【小题2】去查看一下是谁在按门铃，问他要什么。
_______ ______ who is ringing the doorbell and what he wants.
【小题3】我看也不看就删掉了垃圾邮件。
I _______ _______ junk mail without reading it.
【小题4】至少我们没有损失时间，这就算是幸运的了。
_______ _______ we didn’t lose time. That’s something lucky for us.
【小题5】时间一分一秒地过去，艺术家坐着沉默不语。
The artist sat _______ _______ while the minutes passed.