There used to ________ a school here.
Alice, could you tell me ___________?
Though they are______little children , they have worked out _______many difficult math problems.
The doorbell is ringing. It _________ Alice , because she__________ Washington.
Yesterday Shirley advised me to buy my daughter _________ iPad as a birthday present._________ useful advice she offered me!
—The most beautiful teacher Zhanglili ________ a mother to her students.—Yes, she is really a good teacher.