According to a UN report,one third of the world population have no _________ to clean drinking water and health care.
—Sorry, Mum! I failed the job interview again. —Oh, it's too bad. You__________ have made full preparations.
_______, his mother died, _______ the family even worse off
_______ you talk to someone or write a message, you show your skills to others.
Doctors have said that as many as 50% of patients don’t take medicine ______.
Only when he returned _______ that the war had ended and the army had come back.