Thank you for sending us ____ fresh vegetables of many kinds. You have done us ____ a great service.
Every possible means ______ to prevent the air pollution, but the sky is still not clear.
E-mail, as well as telephone,______ an important part in daily communication.
---“Each of the students, working hard at his or her lessons,_____ to go to university.” ----“So do I.”
Not only ______interested in football but ______beginning to show an interest in it.
He is the only one of the students who _______a winner of scholarship for three years.