The clerks were at work so ____ that nobody realized it was already lunch time.
It was in Yuexiu Park _____ they dated for the first time _____ the old couple told us their story.
She is the only one of the students _______ able to answer this question.
She will never forget the days ______ she spent in Beijing.
He loves his parents deeply, ________ are very kind to him.
I had to tell some of them what we wanted to do next, because ________.