According to a UN report,one third of the world population have no _________ to clean drinking water and health care.
By serving others,a person focuses on someone other than himself or herself,______ can be very eyeopening and rewarding.
Mr.Morse,who graduated from a famous medical university,spent years ______ his skills as a doctor.
He’s _______as a “bellyacher” —he’s always complaining about something.
They are only children of not more than twelve and don’t realize_______to organize such an exhibition.
_______ makes the school famous is_______more than 90% of the students have been admitted to universities.