Some children want to challenge themselves by learning a language different from ______ their parents speak at home.
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.
–Do remember to charge the battery 12 hours when you first use it. --_________.