What ________surprise you gave us by wearing such funny________ at so serious a meeting!
In some countries ,treatments for A (H1N1) flu were neither ____nor effective, and many patients died because of infection.
It was too noisy outside. Not until ____at the top of my voice _____his head.
-----Did your father come back early last night? -----Yes ,It was not yet eight o’clock _____he arrived home.
To keep safe _______an earthquake, you should remain at a spot in your room where nothing may fall on you.
—He is eager to try something he has never tried before.—Oh, I see. That’s _______ he’s different from others.