John opened the door. There_______ he had never seen before.

_______over everything whenever we want to make a decision, many people believe, and we will have less chance of making mistakes.

—Do you know _______ they got to know each other?
—It was last year_______ they both taught Chinese in Scotland.

Have you heard Mary was robbed during her trip to Egypt? Not only _________ her money, but she was nearly killed.

It’s the test system rather than the teachers ________to blame for the students’ heavy burden nowadays.

David said that it was______ his strong interest in literature_____ he chose the course.

The mother asked her son_________.

The reason  　　he was absent from class was   　 his mother fell ill this morning.

It was not until I came here _______ I realized this place was famous for not only its beauty but its weather.

Jack asked John ______ when he met him in the street.