普京于2014年5月20日对中华人民共和国进行国事访问,将中俄全面、平等、互信的战略协作伙伴关系提升至更高水平。这说明( )
If a person takes drugs, they will slow down his thinking and ________ turn off his brain.
According to the school rules, if a student _________ happen to damage something by accident,he/she should report it to a teacher or the office immediately.
It was not long _____ he was born that his mother died of illness.
Most of the audience wondered what idea a man who is deaf from birth can have _____ music.
It is ten years _____ I lived in Nanjing, so I know ____ about what it is like today.