Find time to take a walk regularly,__________ you will feel refreshed.
The good thing about today’s children is that they can_____ very easily to new environments.
As a teacher, it is my _________ to make the students devoted to their study.
The research lacksevidence,and therefore,its conclusions are doubtful.
A good friend should be kind and helpful. _________ is my mother.
Though he is ill,he has not quit.