The people at the party were worried about Janet because no one was aware of where she had gone.
参加聚会的人们都为珍妮物担心,因为没人知道她去哪里了。
for the simple reason that I was left with several curiously shaped bits of metal which did not seem to fit anywhere.
原因很简单,因为还剩下几个形状奇特的零件似乎哪里也装不上去。