According to scientists, our mental abilities begin to ___ from the age of 27 after reaching the highest level at 22.
It has been proved by the fact that watching violence on TV may cause children’s _____ behavior.
Peter was so excited he received an invitation from his friend to visit Chongqing.
To his disappointment, the opinion he had stuck out wrong.
She must be in the classroom, ?
and I’ll get the work finished.