It was not until the 18th century that man realized that the whole of the brain was involved in the working of the mind, ?
— Can you complete the task tomorrow? — Sorry, it is _________, but I will try my best.
. _________ is known to all, good friends _________ happiness and value to life.
At the sight of the _________ scene, he was almost _________ to death.
The scientist knew nothing about the matter, because he was always _________ himself in his study.
He said he _________ his work, and then we needed to wait for him for a little while.