срочно надобно сделать.. помогите... завтра сдать надо....Read the text below. Fill

срочно надобно сделать.. помогите... завтра сдать надобно....

Read the text below. Fill in each gap with one word which best fits each space (1-4). More than a quarter of American teenagers nod off in class 1) least once a week, according to the National Sleep Foundation. As experts say, the average teen needs about nine and a half hours of sleep but gets only about six or seven. Blame an early bell, which at most high schools rings before 8 a. m. That's too early for teen brains, which produce sleep-inducing melatonin later at night, making it hard for them to 2) asleep before 11 p. m. The solution: start school later. High schools in 19 states now start at least an hour later 3) before, opening around 8:30 a. m. Others are discussing it. Minneapolis and suburban Edina public schools were first in the country to move to later start times; educators say attendance is up and discipline problems down. The later students slept on school days, the 4) their results ...were, says the University of California, San Diego.