Mrs. Hnatiuk’s five little girls were still in elementary school and, ______, she did not come into frequent contact with high school students.

A．led
B．proposed
C．attributed
D．ushered

A. The delay over the book had lost him the opportunity of reaching the city in time.
B. The meeting held in London elected him to speak for them to the prime minister.
C. The teacher entered the classroom, with his students .following him all the way.
D. The simple language was employed to render it accessible to the general reader.