. While typing, Helen has a habit of stopping _____ to give her long and flowing hair a smooth.
If the university ________ such a good reputation, I would not have come here.
__________ other employees, the boss thinks, Jack is __________one.
The number of people in the world__________ about 6 billion and large quantities of waste ____ each year.
When the movie Twilight __________, it topped best-seller lists for many months.
---- Mary quitted the job again last week.---- Why did she do a thing like that? It seems to make no__________.