小题1:—I’m used to      (stay) up late till midnight.
—But you shouldn’t. Teenagers need at least 8 hours of sleep a day.
小题2:The government has built Qiqiaoweng Wetland Park      (protect) the wetlands nearby.
小题3:—I don’t want to take the plane there. I’m afraid of flying.
—In fact, the plane is      (safe) among different forms of transport.
小题4:If you want to eat more      (health), you should eat less meat and more vegetables.
小题5:Our English teacher often asks us to have a      (discuss) in groups of four.