There are eight tips in Dr.Roger's lecture on sleep,and one of them is:________ to bed early unless you think it is necessary.
You may depend _________it won’t happen again.
He often keeps English _______ ___________,
— Did you scold him for his mistake? — Yes, but _____ it.
It will be five years ____ we meet again.
He said, “_____ a long way to school. ______ a long way to go yet before we arrive.”