(2013·高考浙江卷)If we leave right away，________we’ll arrive on time.

The new group of students is better-behaved than the other group who stayed here _____.

As it was almost time for the flight, all the passengers got ______ the plane.

 None of the students watched the teacher______.

 I won’t buy the house, which was too expensive and too big. ______, I’d grown fond of our little rented house.