The four Twilight books, the first of which ____ in 2005, have set records as the biggest selling novel in USA.

__________ speak English.

Tom worked for a long time. So he wanted tostop __________.

The number of the students in our school_________ 600, but a number of students _________ living in the school.

66 Now more and more college students_____ to go and work in the west provinces of China