1.What were you doing when the UFO a_________?I was in the b_________ chair.空上填什么.
问题描述：
1.What were you doing when the UFO a_________?I was in the b_________ chair.空上填什么.
答
第一个空 填 arrived
第二个空填 bus
意思是：当 UFO到达的时候你正在干什么?我正坐在公交车的座位上.可不可以填bedroom/bathroom可以。 因为没有明确的汉语提示，因此这里填法比较灵活。只要意思通顺就行。