A number of questions ________ by parents at the meeting, but the school leaders could not ________ any proper answer.

With the development of science and technology , more new technology____ to the fields of IT

g others is a habit, youcan learn even at an early age

There is a popular belief among the Europeans ________ chicken soup can help cure flu

Experts have found that the disease will lead to a greater increase in the number of sufferers unless ________ seriously when the symptom first appears.