Will there be more people in 100 years — .

Jean just saw part of the movie The Interstellar, because the rest ________ too difficult to understand.

Are you willing to live in Antarctic (南极) one day— _______ It sounds exciting, but it’s a little cold there.

27We haven’t settled the question of ____ it is necessary for him to study abroad

______ pay too much attention to your readingskill, as it is so important