Our government is trying its best to ____the social security system to protect people’s rights.
The boy wanted to play games at home but his mother told him __________.
This disaster ______ that people had no knowledge of first aid and they hadn’t known how to protect them-selves in face of danger.
The train had left, so we could do nothing but ________ another.
_________ computer games, his parents were very worried about his study.
. So seriously _____ in the accident that he was sent to hospital at once.