I soon found that the work I was doing had already been done by someone else.________,I was wasting my time.
.Not only____the book,but also he remembered what he had read.
So loudly____that even people in the next room could hear him.
.No sooner____to shine____it clouded over again.
Only when it is hungry____attack a human being.
He is a good student,and works very hard;____.