In the reading room, we found her _______ at a desk, with her attention _______ on a book.
The pen, _____ I paid 2 dollars, was lost.
He was very rude to the Customs officer, _____ of course made things even worse.
. China has hundreds of islands, _____ is Taiwan.
We travelled together as far as Chicago, _____ we said goodbye to each other.
_____ was expected, he failed in the exam.