happened to be no one in the building when the fire broke out.

　　　，I have never seen anyone who's as capable as John.

 It was _____that we went camping on the mountain.

—Was his father very strict with him when he was at school？—Yes, he had never praised him _______ he became one of the top students in his grade. 

Many young people in the West are expected to leave __    could be life' s most important decision -- marriage -- almost entirely up to luck.