He never stays up late at night, _____ he—_________. He usually does his homework till midnight.

do the Youth Olympic Games take place— Every 4 years. A lot of teenagers are interested in the games.

he meal ________, themother sat down for a good rest．

Jane was so ______ for the news of her lost child that she was almost driven ______.

Studies show that people are more _____to suffer from back problems if they always sit before computer screens for long hours. [ ]