What the educational expert wants to stress is that ________ from worry and anxiety can definitely contributes to a child’s mental and physical health.

I have had my bike _____, and I'm going to have somebody______ my radio tomorrow.

________ and we’ll get everything ready for the taking off.

Generally speaking, the family, not the school, plays the       role in educating children for life.

 Nowadays, children are ________ too many violent online games, which is bad for the development of their characters.