Peter ________ at this job since he graduated from college.
—What happened over there?—They argued________the waiter________the price of the meal.
She will tell us why she feels so strongly that each of us has a role _____ in making the earth a better place to live.
---Were you satisfied with the exam result?---Not a ______. I should have done much ______.
It's no such ____ long distance from here to ____ supermarket. We can walk there.
The quality of the teachers will influence the students,and ________, the quality of the students will influence the teachers.